Firefox Add-ons Table

Source code

A neat list of all the Firefox add-ons available in the NUR repository. Data was last updated on 2025-07-21.

Name Number Users Number Reviews Average Rating Last Update Categories Summary Version Size License Homepage Repository Stars Count
'Improve YouTube!' 🎧 (For YouTube & Video) 78563 749.0 4.4 a month ago (Jun 18, 2025) Appearance, Photos, Music & Videos, Tabs Youtube Extension. Powerful but lightweight. Enrich your Youtube and content selection. Make YouTube tidy and smart! (Layout, Filters, Shortcuts, Playlist) 4.1320 964.75 KB Friendly License https://github.com/code4charity/YouTube-Extension/ 3843.0
10ten Japanese Reader (Rikaichamp) 23104 255.0 4.7 17 days ago (Jul 4, 2025) Language Support, Social & Communication Quickly translate Japanese by hovering over words. Formerly released as Rikaichamp. 1.25.0 17.65 MB GNU General Public License v3.0 only https://10ten.life
1Password: Password Manager 364691 1740.0 3.8 13 days ago (Jul 8, 2025) Privacy & Security, Other The best way to experience 1Password in your browser. Easily sign in to sites, generate passwords, and store secure information, including logins, credit cards, notes, and more. 8.11.0.29 17.6 MB All Rights Reserved https://1password.com
2FAS Auth - Two factor authentication 7343 86.0 3.9 3 months ago (May 5, 2025) Privacy & Security 2FAS Auth Browser Extension is simple, private, and secured: one click, one tap, and your 2FA token is automatically entered! 1.7.4 5.26 MB GNU General Public License v3.0 only https://2fas.com/
AWS Extend Switch Roles 6543 39.0 5.0 6 months ago (Jan 22, 2025) Other Extend your AWS IAM switching roles. You can set the configuration by aws config format 6.0.0 102.89 KB MIT License https://github.com/tilfinltd/aws-extend-switch-roles 1372.0
About Sync 2876 17.0 4.7 5 months ago (Feb 27, 2025) Other Show information about Firefox Sync. This addon shows information about your Sync account, including showing all server data for your account. It is designed primarily for Sync developers or advanced users. 0.25.20250227.104629 208.47 KB Mozilla Public License 2.0 https://github.com/mhammond/aboutsync 3.0
Absolute Enable Right Click & Copy 90831 791.0 4.4 a year ago (Apr 25, 2024) Other Force Enable Right Click & Copy 1.3.9resigned1 28.98 KB BSD 2-Clause "Simplified" License
ActivityWatch - Open Source Time Tracker 2286 40.0 4.8 4 months ago (Mar 11, 2025) Other This extension logs the current tab and your browser activity to ActivityWatch. 0.5.2 108.19 KB Mozilla Public License 2.0 https://github.com/ActivityWatch/aw-watcher-web 424.0
AdBlocker Ultimate 1429069 26611.0 4.8 20 days ago (Jul 1, 2025) Privacy & Security Completely remove ALL ads. No “acceptable” ads or whitelisted advertisers allowed. This free extensions also helps block trackers and malware. 3.8.39 7.47 MB GNU Lesser General Public License v3.0 only https://adblockultimate.net
AdNauseam 53357 596.0 4.6 a month ago (Jun 17, 2025) Privacy & Security Blocking ads and fighting back against advertising surveillance. 3.25.4 6.1 MB GNU General Public License v3.0 only https://adnauseam.io
Adaptive Tab Bar Color 35460 413.0 4.8 9 days ago (Jul 12, 2025) Appearance, Tabs Changes the color of Firefox theme to match the website’s appearance. 3.0 85.45 KB MIT License https://github.com/easonwong-de/Adaptive-Tab-Bar-Colour 587.0
Add custom search engine 9544 479.0 4.7 4 months ago (Mar 30, 2025) Search Tools Add a custom search engine to the list of available search engines in the search bar and URL bar. 5.0 65.87 KB Mozilla Public License 2.0
Alby - Bitcoin Lightning Wallet & Nostr 2014 31.0 4.8 2 months ago (May 28, 2025) Shopping, Games & Entertainment Your Bitcoin Lightning wallet and companion for accessing Bitcoin and Nostr apps, payments across the globe and passwordless logins. 3.12.0 6.88 MB MIT License https://getAlby.com/
Alfred Integration 406 15.0 4.5 4 years ago (Jan 24, 2021) Bookmarks, Tabs Integrate Firefox with Alfred — Search your Firefox bookmarks & history and control Firefox tabs from Alfred. 1.2.0 19.79 KB MIT License https://github.com/deanishe/alfred-firefox 355.0
Allow Right-Click 49861 170.0 4.2 6 months ago (Jan 13, 2025) Web Development, Privacy & Security Re-enable the possibility to use the context menu on sites that overrides it 0.6.3 147.27 KB Mozilla Public License 2.0 https://webextension.org/listing/allow-right-click.html
Anchors reveal 58 5.0 4.6 a year ago (Apr 25, 2024) Web Development, Bookmarks Reveal the anchors in a webpage 1.2resigned1 20.43 KB GNU General Public License v3.0 only http://dascritch.net/post/2014/06/24/Sniffeur-d-ancre
Angular DevTools 9771 23.0 3.5 19 days ago (Jul 1, 2025) Web Development Angular DevTools extends Firefox DevTools adding Angular specific debugging and profiling capabilities. 1.0.37 3.81 MB MIT License https://angular.dev/tools/devtools/
Animalese Typing 6932 60.0 4.6 2 months ago (May 16, 2025) Appearance, Games & Entertainment Plays animal crossing villager sounds whenever you type! 1.45.3 15.2 MB Mozilla Public License 2.0
Anki JPDB Reader 35 2 months ago (May 23, 2025) Feeds, News & Blogging, Language Support, Games & Entertainment Japanese text parsing + sentence mining with JPDB and Anki 0.6.3 735.06 KB MIT License https://github.com/Kagu-chan/anki-jpdb.reader 26.0
Annotations Restored for YouTube™ 8205 36.0 4.7 3 years ago (Sep 14, 2022) Social & Communication, Games & Entertainment Brings annotation support back to YouTube™! 1.2 362.54 KB GNU General Public License v3.0 only https://github.com/isaackd/AnnotationsRestored 165.0
ArchiveBox 485 4.0 4.8 4 years ago (Nov 8, 2021) Feeds, News & Blogging, Bookmarks Automatically or manually send pages to your ArchiveBox for archival. 1.3.1 36.45 KB MIT License https://github.com/ArchiveBox/archivebox-browser-extension 328.0
Aria2 Download Manager Integration 1875 170.0 4.5 6 years ago (Jun 14, 2019) Download Management, Other Replace built-in download manager. When activated, detects the download links to direct links to this add-on and send to Aria2 0.4.5 1.46 MB MIT License
Ask Historians Comment Helper 501 3.0 5.0 4 months ago (Mar 9, 2025) Appearance, Social & Communication Ask Historians Comment Helper will show an improved comment count for the sub-reddit r/AskHistorians. It also allows you to monitor topics to see when they will get an answer. 1.0.6 28.48 KB GNU General Public License v2.0 only
AudioContext Suspender 125 4.0 4.5 9 months ago (Oct 28, 2024) Other Suspending AudioContext instances automatically 1.4 8.15 KB Mozilla Public License 2.0
Augmented Steam 60793 475.0 4.7 a month ago (Jun 7, 2025) Shopping, Games & Entertainment Augments your Steam Experience 4.2.2 13.08 MB GNU General Public License v3.0 only https://augmentedsteam.com/
Auto Fullscreen 3728 20.0 4.7 4 years ago (Oct 14, 2021) Appearance Open all Firefox windows in full screen mode 2.0.4 16.13 KB MIT License https://github.com/insiderser/AutoFullscreen/ 12.0
Auto Referer 251 8.0 4.0 a month ago (Jun 23, 2025) Privacy & Security, Tabs Control HTTP referer to protect privacy and not break web. And this is the addon (maybe the only one?) that deals with the 'document.referrer' bug 0.8.52 36.06 KB GNU General Public License v2.0 only https://garywill.github.io
Auto Tab Discard 72421 933.0 4.5 3 years ago (Dec 17, 2022) Appearance, Tabs Increase browser speed and reduce memory load and when you have numerous open tabs. 0.6.7 158.98 KB Mozilla Public License 2.0 https://webextension.org/listing/tab-discard.html
Auto-Sort Bookmarks 2904 127.0 3.9 3 years ago (May 13, 2022) Bookmarks, Other Sort bookmarks by multiple criteria 3.4.5 426.67 KB GNU General Public License v3.0 only https://github.com/eric-bixby/auto-sort-bookmarks-webext 122.0
Awesome RSS 5340 107.0 4.4 a year ago (Apr 25, 2024) Feeds, News & Blogging Puts an RSS/Atom subscribe button back in URL bar. Supports "Live Bookmarks" (built-in), Feedly, & Inoreader 1.3.6resigned1 135.54 KB GNU General Public License v3.0 only
Awesome Screenshot & Screen Recorder 101624 1535.0 4.4 2 years ago (Jan 17, 2024) Photos, Music & Videos, Social & Communication Full page screen capture and screen recorder 2 in 1. Share screencast video instantly. 4.3.7.13 4.63 MB Mozilla Public License 2.0 https://www.awesomescreenshot.com
Batchcamp 954 19.0 4.6 2 months ago (Jun 1, 2025) Download Management, Photos, Music & Videos Bulk downloader for your Bandcamp purchases 1.5.0 193.86 KB MIT License https://deejay.tools
Behave! 442 12.0 4.7 5 years ago (Jul 10, 2020) Privacy & Security A monitoring browser extension for pages acting as bad boys 0.9.7.1 82.43 KB GNU General Public License v3.0 only
Behind The Overlay Revival 3338 80.0 4.3 6 years ago (Apr 22, 2019) Other, Tabs Click to close any overlay popup on any website. 1.8.3 34.97 KB GNU General Public License v3.0 only https://gitlab.com/ivanruvalcaba/BehindTheOverlayRevival 8.0
Belgium eID 135173 1720.0 3.4 4 years ago (Mar 3, 2021) Privacy & Security, Other Use the Belgian electronic identity card (eID) in Firefox 1.0.32 11.47 KB GNU Lesser General Public License v3.0 only https://eid.belgium.be/
Better Canvas 16950 66.0 4.9 9 months ago (Oct 21, 2024) Appearance Best dark mode for Canvas, plus other features 5.12.0 279.2 KB Mozilla Public License 2.0
Better Darker Docs 2573 38.0 4.1 2 years ago (Nov 4, 2023) Appearance Gives Google Docs, Sheets, Slides, and Drawings a proper dark mode based on system theme, plus clearer text 1.1.1 19.11 KB MIT License
BetterTTV 485556 949.0 4.6 2 months ago (May 22, 2025) Social & Communication, Games & Entertainment Enhances Twitch and YouTube with new features, emotes, and more. 7.6.14 738.75 KB All Rights Reserved https://betterttv.com
Beyond 20 37912 79.0 4.8 3 months ago (May 3, 2025) Games & Entertainment Integrates the D&D Beyond Character Sheet into Roll20 and Foundry VTT. 2.14.0 1.37 MB GNU General Public License v3.0 only https://beyond20.here-for-more.info
BibBot 2397 24.0 4.1 21 days ago (Jun 30, 2025) Feeds, News & Blogging Durch ein Bibliothekskonto mit Pressedatenbankzugriff entfernt dieses Add-On die Paywall bei deutschen Nachrichtenseiten. Ein solches Bibliothekskonto ist Voraussetzung zur Nutzung des Add-On. 0.40.5 466.7 KB GNU General Public License v3.0 only https://github.com/stefanw/bibbot 580.0
Binnen-I be gone 5998 315.0 4.8 4 years ago (Nov 3, 2021) Appearance, Language Support This add-on likely is only useful for users who speak German or visit German language websites - it will remove so called "Binnen-Is" on webpages. 3.1.1 25.48 KB GNU General Public License v3.0 only
Bionic Reader 4031 59.0 3.9 2 years ago (Jan 8, 2024) Appearance, Language Support - Apply Bionic Reading style with adjustable strength to a webpage. - Adjustable vowels for different languages. - Adjustable font family, font size, font weight and font opacity. - Support Unicode characters. - Apply dark mode to a webpage. 1.6.25 31.9 KB Mozilla Public License 2.0
Bitwarden Password Manager 846289 9015.0 4.6 18 days ago (Jul 2, 2025) Privacy & Security At home, at work, or on the go, Bitwarden easily secures all your passwords, passkeys, and sensitive information. 2025.6.1 14.73 MB GNU General Public License v3.0 only https://bitwarden.com
BlockTube 26808 451.0 4.0 7 months ago (Dec 7, 2024) Privacy & Security, Photos, Music & Videos, Other YouTube™ Content Blocker Block channels and videos from YouTube™ Fast and easy 0.4.5 198.81 KB GNU General Public License v3.0 only https://github.com/amitbl/blocktube 1158.0
Bonjourr · Minimalist and lightweight startpage 8626 1470.0 4.9 2 months ago (Jun 5, 2025) Appearance, Tabs Improve your web browsing experience with Bonjourr, a beautiful, customizable and lightweight homepage inspired by iOS. 21.0.1 1.87 MB GNU General Public License v3.0 only https://bonjourr.fr
Bookmark search plus 2 3073 267.0 4.6 a month ago (Jun 15, 2025) Bookmarks, Tabs Search for both bookmarks and folders. Find exact location in bookmark tree (show parent folder, go parent folder). Advanced filters and searches, use regex. 2.0.135 348.35 KB Mozilla Public License 2.0 https://github.com/aaFn/Bookmark-search-plus-2/wiki 131.0
Boring RSS 37 3.0 4.0 5 years ago (Oct 15, 2020) Feeds, News & Blogging A low-permission button to find RSS/Atom feeds in the current page. 0.5 24.85 KB GNU General Public License v3.0 only https://git.sr.ht/~tomf/boring-rss
British English Dictionary (Marco Pinto) 191567 111.0 4.6 20 days ago (Jul 1, 2025) A fork of Mark Tyndall's add-on, based on David Bartlett's British Dictionary R1.19 for Firefox, Thunderbird and SeaMonkey. 4.0.2 474.88 KB GNU Lesser General Public License v3.0 only https://proofingtoolgui.org
BroTab 189 5.0 5.0 3 years ago (May 29, 2022) Search Tools, Other, Tabs Control your Firefox's tabs from command line 1.4.0 19.47 KB MIT License https://github.com/balta2ar/brotab/ 447.0
Browserpass 1103 41.0 4.7 3 months ago (Apr 6, 2025) Privacy & Security, Other Browserpass is a browser extension for Firefox and Chrome to retrieve login details from zx2c4's pass (passwordstore.org) straight from your browser. Tags: passwordstore, password store, password manager, passwordmanager, gpg 3.10.2 1.11 MB ISC License https://github.com/browserpass/browserpass-extension 940.0
Bulgarian Dictionary 14331 12.0 4.9 5 years ago (Jul 16, 2020) Bulgarian spellchecking... 4.4.3 1.7 MB Mozilla Public License 2.0 http://bgoffice.sourceforge.net/
Bulk URL Opener 4566 33.0 4.9 3 years ago (Jun 19, 2022) Search Tools, Other, Tabs Allows user to open a list of url in one click. 1.11.3 249.9 KB MIT License https://bulkurlopener.com
Buster: Captcha Solver for Humans 33312 476.0 3.8 a year ago (Jun 4, 2024) Privacy & Security Save time by asking Buster to solve CAPTCHAs for you. 3.1.0 335.58 KB GNU General Public License v3.0 only https://github.com/dessant/buster#readme 8606.0
B站空降助手 1220 20.0 4.8 2 days ago (Jul 19, 2025) Games & Entertainment 恰饭?桌子都给你掀了(/= _ =)/~┴┴ 带你精准空降到恰饭结束或者高能时刻,自动跳过视频中的赞助广告、订阅提醒等片段。你也可以亲自标记视频中的广告并上传,所有人都会从您的贡献中受益。 0.9.0 2.67 MB GNU General Public License v3.0 only https://www.bsbsb.top
C/C++ Search Extension 241 6.0 5.0 2 years ago (Jul 30, 2023) Search Tools, Language Support The ultimate search extension for C/C++ 0.4.0 337.8 KB All Rights Reserved https://cpp.extension.sh
CanvasBlocker 39396 452.0 4.6 7 months ago (Jan 3, 2025) Privacy & Security Alters some JS APIs to prevent fingerprinting. 1.11 448.87 KB Mozilla Public License 2.0 https://github.com/kkapsner/CanvasBlocker/ 1344.0
Capture & Print 8020 46.0 3.7 6 years ago (May 4, 2019) Photos, Music & Videos, Social & Communication This add-on lets you print a webpage's area easily. 0.2.1 21 KB Mozilla Public License 2.0
Cast Kodi 3377 83.0 4.5 2 months ago (May 21, 2025) Photos, Music & Videos Cast videos and music from more than 50 sites (YouTube, Twitch, Vimeo, SoundCloud, torrents, …) to Kodi with context menu and remote control. 7.13.0 311.43 KB MIT License https://github.com/regseb/castkodi 122.0
Catppuccin Mocha - Mauve 689 17.0 4.9 3 years ago (Aug 17, 2022) Other 🦊 Soothing pastel theme for Firefox (Official) 2.0 7.62 KB Creative Commons Attribution 3.0
Catppuccin for Web File Explorer Icons 484 8.0 5.0 2 months ago (May 19, 2025) Web Development, Appearance Soothing pastel icons for file explorers on the web! 1.3.0 142.66 KB MIT License https://github.com/catppuccin/web-file-explorer-icons 177.0
Censor Tracker 12198 180.0 4.1 a year ago (Aug 8, 2024) Privacy & Security, Alerts & Updates Censor Tracker is an extension that allows you to bypass Internet censorship, warns you about sites that transmit your data with government agencies, and detect new acts of censorship. 18.5.0 1.99 MB MIT License https://censortracker.org/en.html
ChatGPTBox 3301 93.0 4.5 a year ago (Aug 8, 2024) Search Tools, Language Support, Other This extension integrates ChatGPT into the browser deeply, and provides chat windows, search engines and commonly used websites integration, and selection tools. 2.5.8 1.92 MB MIT License https://github.com/josStorer/chatGPTBox 10622.0
Chrome Mask 13860 80.0 4.5 12 days ago (Jul 9, 2025) Web Development Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise. 6.0.0 57.32 KB MIT License https://github.com/denschub/chrome-mask 134.0
Clear Cache 58802 287.0 4.4 7 months ago (Dec 16, 2024) Web Development Clear browser cache with a single click or via the F9 key. F9 Fever! ;) 4.2 25.34 KB Mozilla Public License 2.0 https://github.com/TenSoja/clear-cache 65.0
ClearURLs 520944 1003.0 4.3 6 months ago (Feb 5, 2025) Privacy & Security Removes tracking elements from URLs 1.27.3 1.05 MB GNU Lesser General Public License v3.0 only https://clearurls.xyz/
Click and Read 6877 24.0 4.5 11 days ago (Jul 10, 2025) Search Tools Developed by the CNRS to facilitate access to documents, the extension scans the web page you visit for document identifiers (DOI, PMID, PII) and adds a link if the resource is available. 3.31.0 2.54 MB Mozilla Public License 2.0 https://clickandread.inist.fr/
Close Other Windows 142 7.0 5.0 a year ago (Apr 25, 2024) Appearance, Tabs Adds a button to close all tabs in other windows which are not pinned 0.2resigned1 9.17 KB MIT License
CommaFeed extension for Firefox 98 5.0 4.6 2 years ago (Jun 18, 2023) Feeds, News & Blogging, Alerts & Updates The extension will show an action next to the address bar with the count of your unread articles. Clicking the button will either: - show CommaFeed in a popup - open CommaFeed in a new tab - open next unread article in a new tab 3.3.2 117.42 KB Mozilla Public License 2.0
Competitive Companion 2833 29.0 5.0 2 months ago (May 30, 2025) Other Parses competitive programming problems and sends them to various tools like CP Editor and CPH. 2.61.0 584.94 KB MIT License https://github.com/jmerle/competitive-companion 1091.0
Conex 781 83.0 4.4 a year ago (Apr 25, 2024) Other, Tabs TabGroups married with Tab Containers and bookmark & history search 0.9.8resigned1 112.16 KB Mozilla Public License 2.0 https://github.com/kesselborn/conex#conex 174.0
Consent-O-Matic 50224 275.0 4.3 a month ago (Jun 17, 2025) Privacy & Security Automatic handling of GDPR consent forms 1.1.5 96.31 KB MIT License https://consentomatic.au.dk/
Container Colors 9 3 years ago (Feb 10, 2022) Appearance Change theme colour based on your container color 1.2 24.18 KB Mozilla Public License 2.0
Container Tab Groups 914 43.0 3.9 5 months ago (Feb 12, 2025) Privacy & Security, Tabs Chrome-like tab groups using private and isolated containers: The ultimate tab manager and groups for Firefox. 11.11.0.200 1.19 MB GNU General Public License v3.0 only https://github.com/menhera-org/TabArray 142.0
Container Tabs Sidebar 1691 63.0 4.5 a year ago (Mar 10, 2024) Privacy & Security, Appearance, Tabs Show tabs in a sidebar grouped by privacy containers. 1.2.0 88.58 KB Mozilla Public License 2.0 https://github.com/maciekmm/container-tabs-sidebar 126.0
Container proxy 5045 75.0 4.8 4 years ago (Nov 9, 2021) Privacy & Security, Tabs Allows Firefox user assign different proxies to be used in different containers 0.1.22 174.69 KB BSD 2-Clause "Simplified" License https://github.com/bekh6ex/firefox-container-proxy 153.0
Containerise 1862 128.0 4.4 4 years ago (Feb 10, 2021) Privacy & Security, Other, Tabs Automatically open websites in a dedicated container. Simply add rules to map domain or subdomain to your container. 3.9.0 281.11 KB MIT License https://github.com/kintesh/containerise 441.0
Control Panel for Twitter 42300 425.0 4.7 a month ago (Jun 14, 2025) Social & Communication Gives you more control over Twitter and adds missing features and UI improvements 4.12.3 139.57 KB MIT License https://soitis.dev/control-panel-for-twitter
Cookie AutoDelete 185702 1501.0 4.5 3 years ago (Dec 8, 2022) Privacy & Security Control your cookies! This WebExtension is inspired by Self Destructing Cookies. When a tab closes, any cookies not being used are automatically deleted. Keep the ones you trust (forever/until restart) while deleting the rest. Containers Supported 3.8.2 746.96 KB MIT License https://github.com/Cookie-AutoDelete/Cookie-AutoDelete 1877.0
Cookie Quick Manager 51772 378.0 4.4 6 years ago (Jul 9, 2019) Web Development, Privacy & Security, Other An addon to manage cookies (view, search, create, edit, remove, backup, restore, protect from deletion and much more). Firefox 57+ is supported. 0.5rc2 246.39 KB GNU General Public License v3.0 only https://github.com/ysard/cookie-quick-manager 271.0
Copy Link Text 3026 71.0 4.3 a year ago (Aug 28, 2024) Other Copy the text of the link. 1.6.5 17.09 KB Mozilla Public License 2.0 https://github.com/def00111/copy-link-text 25.0
Copy Selected Links 5004 92.0 4.8 4 years ago (Oct 30, 2021) Web Development, Download Management, Appearance Right-click selected text to copy the URL of any links it contains. 2.4.1 132.92 KB Mozilla Public License 2.0 https://gitlab.com/Marnes/webextensions 11.0
Copy Selected Tabs to Clipboard 1800 85.0 4.9 4 months ago (Mar 24, 2025) Web Development, Tabs Provides ability to copy title and URL of selected tabs to the clipboard. 1.6.7 71.57 KB Mozilla Public License 2.0
Copy Selection as Markdown 927 49.0 4.8 2 months ago (Jun 1, 2025) Other Copy title, URL, and selection as Markdown. 0.23.0 44.44 KB MIT License https://github.com/0x6b/copy-selection-as-markdown 203.0
Copy as Org-Mode 349 16.0 5.0 3 years ago (Apr 20, 2022) Other Copy selection or link of current page as Org-mode format text! 0.2.0 183 KB Mozilla Public License 2.0 https://github.com/kuanyui/copy-as-org-mode 207.0
Ctrl+Number to switch tabs 2324 103.0 5.0 2 years ago (Nov 9, 2023) Other, Tabs Adds keyboard shortcut Ctrl+1 to switch to the first tab, Ctrl+2 to switch to the second, and so on. Ctrl+9 switches to the last tab. 1.0.2 8.14 KB MIT License https://github.com/AbigailBuccaneer/firefox-ctrlnumber 67.0
Custom New Tab Page 1607 89.0 4.3 5 years ago (Oct 29, 2020) Appearance, Tabs Specify a custom URL to be shown when opening a new tab, **without changing the address bar content**. 1.0.0 20.75 KB ISC https://github.com/methodgrab/firefox-custom-new-tab-page 87.0
DF YouTube (Distraction Free) 11771 258.0 4.6 6 years ago (Nov 19, 2019) Appearance, Other Allow yourself to focus while using YouTube for work, recreation or education. Disable autoplay, remove sidebar, hide feed, comments, and more. 1.13.504 98.93 KB Mozilla Public License 2.0
Danish Dictionary for the Spell Checker 10994 20.0 4.3 2 months ago (May 8, 2025) Danish dictionary for Firefox, Thunderbird and other Mozilla products. 2.9 2.19 MB GNU Lesser General Public License v2.1 only https://mozilladanmark.dk/stavekontrol/
Dark Background and Light Text 34587 1106.0 4.5 4 years ago (Feb 7, 2021) Appearance Make every web page (or just the pages you want) display light text on dark backgrounds. All color variations are fully customizable. 0.7.6 85 KB Mozilla Public License 2.0 https://github.com/m-khvoinitsky/dark-background-light-text-extension 372.0
Dark Mode (WebExtension) 51359 757.0 4.2 9 months ago (Oct 9, 2024) Feeds, News & Blogging, Appearance, Tabs A global dark theme for the web 0.5.3 305.13 KB Mozilla Public License 2.0 https://mybrowseraddon.com/dark-mode.html
Dark Mode Website Switcher 1034 24.0 4.2 4 years ago (Dec 7, 2021) Web Development, Appearance, Other Adjusts the website's color scheme, so that all websites are dark by default, if they have a special design for that. It makes websites look dark even with a light system style. 2.0 89.23 KB MIT License https://github.com/rugk/website-dark-mode-switcher 64.0
Dark Reader 1221408 6539.0 4.5 4 days ago (Jul 16, 2025) Web Development, Appearance, Other Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing. 4.9.110 803.55 KB MIT License https://darkreader.org/
Dark Scroll 430 59.0 4.7 6 years ago (Apr 26, 2019) Appearance Makes the scrollbars on TweetDeck and other sites dark in Firefox. This should be done by the site itself, not by an addon :( Image based on Scroll by Juan Pablo Bravo, CL https://thenounproject.com/term/scroll/18607/ 2.0.0 52.03 KB GNU Lesser General Public License v3.0 only
Dark space - The best dynamic theme 90396 1977.0 4.9 a year ago (Jan 24, 2024) Abstract Animated stars in dark theme. Seamless video background with particles moving around. Enjoy. 1.1.2 2.57 MB All Rights Reserved https://github.com/nicoth-in/Dark-Space-Theme 153.0
DarkCloud - Soundcloud Night Mode 4461 41.0 4.9 a year ago (Aug 8, 2024) Appearance, Social & Communication Changes soundcloud.com to a dark theme. 1.6.6 26.19 KB Mozilla Public License 2.0 http://acroma.rf.gd/darkcloud
Dashlane Password Manager 118989 978.0 4.2 a month ago (Jun 9, 2025) Privacy & Security Dashlane makes the internet easier. Save all your passwords, fill forms fast, and keep your data accessible and safe. 6.2524.0 15.08 MB Custom License https://www.dashlane.com
DeArrow - Better Titles and Thumbnails on YouTube 30978 314.0 4.0 a month ago (Jun 21, 2025) Appearance, Games & Entertainment Crowdsourcing titles and thumbnails to be descriptive and not sensational 2.1.4 3.18 MB GNU Lesser General Public License v3.0 only https://dearrow.ajay.app
Decentraleyes 240640 1523.0 4.8 8 months ago (Nov 21, 2024) Privacy & Security Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers. 3.0.0 6.85 MB Mozilla Public License 2.0 https://decentraleyes.org
Dictionariez: Your Dictionary, Your Language 799 55.0 4.8 13 days ago (Jul 7, 2025) Feeds, News & Blogging, Search Tools, Language Support Dictionariez: This extension help you reading articles, looking up words of any language in various dictionaries, and exporting words to Anki, facilitating your language learning process. 5.7.2 4.5 MB GNU General Public License v2.0 only https://github.com/revir/dictionaries 525.0
Disable Facebook News Feed 1381 115.0 4.1 3 years ago (Oct 13, 2022) Feeds, News & Blogging, Social & Communication Removes News Feed from Facebook. Saves hours of scrolling. 3.3 8.17 KB Mozilla Public License 2.0
Disable JavaScript 33476 161.0 4.5 a year ago (Apr 25, 2024) Web Development, Privacy & Security, Appearance Adds the ability to disable JavaScript for specific sites or specific tabs. You can customize the default JS state (on or off), the disable behavior (by domain or by tab) and much more. 2.3.2resigned1 92.89 KB MIT License https://github.com/dpacassi/disable-javascript
Disconnect 70526 517.0 4.1 a year ago (Feb 22, 2024) Web Development, Privacy & Security Make the web faster, more private, and more secure. 20.3.1.2 1.81 MB GNU General Public License v3.0 only https://disconnect.me/
Display #Anchors 1143 35.0 4.9 a year ago (Apr 25, 2024) Web Development, Bookmarks, Other Displays anchors for all content in the current web page without breaking the layout. 1.4resigned1 35.98 KB MIT License https://github.com/Rob--W/display-anchors 98.0
DocsAfterDark - Google Docs Dark Mode 54790 233.0 4.2 6 months ago (Jan 16, 2025) Appearance Modern, dark mode for Google Docs 1.1.1 371.8 KB Mozilla Public License 2.0 https://waymondrang.com/docsafterdark/
Don't Fuck With Paste 10784 145.0 4.4 5 years ago (Aug 22, 2020) Privacy & Security This add-on stops websites from blocking copy and paste for password fields and other input fields. 2.7 164.52 KB MIT License https://github.com/aaronraimist/DontFuckWithPaste 1098.0
DownThemAll! 198417 962.0 4.1 9 months ago (Oct 16, 2024) Download Management The Mass Downloader for your browser 4.13.1 951.7 KB GNU General Public License v2.0 only https://www.downthemall.org/
Download All Images 105333 620.0 3.9 2 months ago (May 17, 2025) Web Development, Photos, Music & Videos Easily save images with a wide range of customization features, such as file size, dimensions, and image type. 0.8.4 143.07 KB Mozilla Public License 2.0 https://webextension.org/listing/save-images.html
Download with JDownloader 17556 130.0 3.7 9 months ago (Oct 30, 2024) Download Management, Photos, Music & Videos when activated, interrupts the built-in download manager to direct links to JDownloader 0.3.5 516.32 KB Mozilla Public License 2.0 https://webextension.org/listing/download-with.html?from=jdownloader
Dracula Dark Theme 5596 275.0 4.8 7 months ago (Dec 21, 2024) Solid Official Dracula theme for firefox. 1.11 7.83 KB Creative Commons Attribution-NonCommercial-Share Alike 3.0 https://draculatheme.com/firefox
Dualsub - Dual Subtitles for YouTube 4477 112.0 4.3 2 days ago (Jul 19, 2025) Language Support, Photos, Music & Videos Display dual subtitles on video websites. 2.62.3 35.6 KB All Rights Reserved https://www.dualsub.xyz/en/
DuckDuckGo Search & Tracker Protection 1248180 2328.0 4.3 3 months ago (Apr 8, 2025) Privacy & Security, Search Tools Actively protects your data in your current browser 2025.4.7 2.89 MB Apache License, Version 2.0 https://duckduckgo.com/app
Earth View from Google Earth 3227 74.0 4.4 a year ago (Apr 25, 2024) Appearance, Photos, Music & Videos, Tabs Experience a beautiful image from Google Earth every time you open a new tab. 2.18.8resigned1 353.43 KB Apache License https://earthview.withgoogle.com/
Ecosia — The search engine that plants trees 🌱 263172 786.0 4.8 a month ago (Jun 24, 2025) Search Tools, Other, Shopping This extension adds Ecosia.org as the default search engine to your browser — it’s completely free! 6.0.0 42.38 KB Mozilla Public License 2.0 http://www.ecosia.org
Edit with Emacs 193 28.0 4.9 5 years ago (Jan 13, 2021) Appearance, Other Allow user to edit web-page textareas with Emacs (and other editors). 1.16 330.58 KB GNU General Public License v3.0 only https://github.com/stsquad/emacs_chrome 528.0
Elasticvue 4837 23.0 4.8 a month ago (Jun 22, 2025) Web Development Elasticvue is a free and simple elasticsearch gui for your browser 1.8.0 3.59 MB MIT License https://elasticvue.com/
Enhanced GitHub 569 10.0 4.8 a year ago (Jun 3, 2024) Other Display repo size, size of each file, download link and option to copy file contents 6.1.0 51.74 KB MIT License https://github.com/softvar/enhanced-github 2217.0
Enhancer for Nebula 375 14.0 4.5 2 months ago (May 27, 2025) Photos, Music & Videos, Games & Entertainment Enhancer for Nebula. Adds quality of life features to the nebula player. 1.6.3 279.96 KB Mozilla Public License 2.0 https://github.com/cpiber/NebulaEnhance#readme 45.0
Enhancer for YouTube™ 652344 12085.0 4.7 8 months ago (Nov 24, 2024) Photos, Music & Videos, Games & Entertainment Take control of YouTube and boost your user experience! 2.0.130.1 389.28 KB Custom License https://www.mrfdev.com/enhancer-for-youtube
Eno® from Capital One® 23415 715.0 3.0 a year ago (Apr 4, 2024) Privacy & Security, Shopping Shop more securely through your desktop browser with Eno®, your Capital One® assistant. 4.4.0 5.34 MB All Rights Reserved https://www.capitalone.com/applications/eno/virtualnumbers/
Export Cookies 12099 23.0 4.3 6 years ago (Sep 13, 2019) Web Development, Privacy & Security, Other Export cookies to a Netscape format cookies.txt file. 0.3.2 150.22 KB MIT License https://github.com/rotemdan/ExportCookies 121.0
Export Tabs URLs 5957 95.0 4.7 6 years ago (Sep 8, 2019) Bookmarks, Other, Tabs List the URLs of all the open tabs and copy that list to clipboard or export it to a file. Features: - include titles - custom format (e.g. markdown, html…) - filter tabs - limit to current window - list non-HTTP(s) URLs - ignore pinned tabs 0.2.12 45.91 KB GNU General Public License v3.0 only https://github.com/alct/export-tabs-urls 137.0
External Application Button (WebExtension) 905 48.0 4.5 21 days ago (Jun 30, 2025) Web Development, Download Management, Appearance, Photos, Music & Videos A highly customizable external application button and context-menu items 0.6.0 166.66 KB Mozilla Public License 2.0 https://webextension.org/listing/external-application-button.html
Facebook Container 939386 4101.0 4.5 4 months ago (Mar 10, 2025) Privacy & Security, Social & Communication Prevent Facebook from tracking you around the web. The Facebook Container extension for Firefox helps you take control and isolate your web activity from Facebook. 2.3.12 408.69 KB Mozilla Public License 2.0 https://github.com/mozilla/contain-facebook 1030.0
Fakespot Fake Amazon Reviews and eBay Sellers 41039 347.0 3.2 a month ago (Jun 12, 2025) Shopping Protect yourself from bad sellers and fake reviews on Amazon and more! 2.0.1 5.23 MB All Rights Reserved https://fakespot.com
FastForward 35778 200.0 4.7 a year ago (Apr 1, 2024) Privacy & Security, Tabs Don't waste time with compliance. Use FastForward to skip annoying URL "shorteners". 0.2383 471.05 KB Unlicence https://fastforward.team
FastStream Video Player 5179 96.0 4.7 a month ago (Jun 6, 2025) Download Management, Photos, Music & Videos Stream videos without buffering in the browser. An extension that gives you a better, accessible video player designed for your needs. 1.3.46 3.43 MB All Rights Reserved https://faststream.online/
FediAct 508 20.0 4.8 3 years ago (Dec 29, 2022) Feeds, News & Blogging, Social & Communication Simplifies interactions on other Mastodon instances than your own. Visit https://github.com/lartsch/FediAct for more. 0.9.8.7 61.45 KB MIT License https://github.com/Lartsch/FediAct 466.0
Feedbro 44520 787.0 4.5 a year ago (Mar 24, 2024) Feeds, News & Blogging, Photos, Music & Videos Advanced Feed Reader - Read news & blogs or any RSS/Atom/RDF source. 4.16.3 1.18 MB All Rights Reserved http://nodetics.com/feedbro
FicLab 1949 33.0 4.6 6 months ago (Jan 5, 2025) Download Management, Other Download fanfiction as ebook files from a number of popular sites. Simple to use, with beautiful results. 1.0.111 2.97 MB proprietary https://www.ficlab.com/
File Icon for GitHub, GitLab and Bitbucket 787 35.0 4.9 a year ago (Feb 19, 2024) Web Development, Appearance A Firefox Add-On which gives different filetypes different icons to GitHub, Gitlab, Bitbucket, gitea and gogs. 1.5.2 465.24 KB MIT License https://github.com/xxhomey19/github-file-icon 1546.0
FireMonkey 1778 81.0 4.5 6 months ago (Jan 25, 2025) Web Development, Privacy & Security, Other Super Lightweight User Script and Style Manager 2.74 999.65 KB Mozilla Public License 2.0 https://github.com/erosman/firemonkey 89.0
Firefox Color 111865 1412.0 4.4 5 years ago (Sep 15, 2020) Appearance Build, save and share beautiful Firefox themes. 2.1.7 122.95 KB Mozilla Public License 2.0 https://color.firefox.com
Firefox Multi-Account Containers 375773 7657.0 4.6 2 months ago (May 16, 2025) Privacy & Security, Tabs Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs. Cookies are separated by container, allowing you to use the web with multiple accounts and integrate Mozilla VPN for an extra layer of privacy. 8.3.0 901.4 KB Mozilla Public License 2.0 https://github.com/mozilla/multi-account-containers/#readme 2910.0
Firefox Relay 219449 2166.0 4.2 2 years ago (Dec 6, 2023) Privacy & Security, Social & Communication Firefox Relay lets you generate email aliases that forward to your real inbox. Use it to hide your real email address and protect yourself from hackers and unwanted mail. 2.8.1 1.21 MB Mozilla Public License 2.0 https://relay.firefox.com/
Firefox Translations 67527 1033.0 3.6 2 years ago (Jul 20, 2023) Privacy & Security, Language Support Translate websites in your browser, privately, without using the cloud. The functionality from this extension is now integrated into Firefox. 1.3.4buildid20230720.091143 3.08 MB Mozilla Public License 2.0 https://blog.mozilla.org/en/mozilla/local-translation-add-on-project-bergamot/
Firenvim 376 39.0 4.8 a year ago (Apr 28, 2024) Other Turn Firefox into a Neovim client. 0.2.16 250.75 KB GNU General Public License v3.0 only
Flagfox 102057 1043.0 4.6 21 days ago (Jun 30, 2025) Web Development, Alerts & Updates Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more... 6.1.88 1.11 MB Flagfox License https://flagfox.wordpress.com/
Forget Me Not - Forget cookies & other data 10983 283.0 4.3 5 years ago (May 24, 2020) Privacy & Security, Tabs Make the browser forget website data (like cookies, local storage, etc.), except for the data you want to keep by adding domains to a whitelist, graylist, blacklist, or redlist. 2.2.8 1.89 MB zlib/libpng https://github.com/Lusito/forget-me-not/ 230.0
Form History Control 7036 103.0 4.3 3 months ago (Apr 24, 2025) Web Development, Privacy & Security, Other Manage form history entries (search, edit, cleanup, export/import) and easy text formfiller. Auto-save text entered in any form while typing to allow fast recovery when disaster strikes. 2.5.11.0 578.5 KB MIT License https://stephanmahieu.github.io/fhc-home/
Foxy Gestures 19020 503.0 4.2 4 years ago (Oct 18, 2021) Appearance, Other Mouse gestures for Firefox. A web extension alternative to FireGestures created by a long time FireGestures user. 1.2.12 966.47 KB GNU General Public License v3.0 only https://github.com/marklieberman/foxygestures 192.0
FoxyProxy Standard 216621 968.0 4.0 3 months ago (Apr 12, 2025) Web Development, Privacy & Security FoxyProxy is an open-source, advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. No paid accounts are necessary; bring your own proxies or buy from any vendor. The original proxy tool, since 2006. 9.2 224.56 KB GNU General Public License v2.0 only https://getfoxyproxy.org
FoxyTab 20633 446.0 4.6 2 years ago (Feb 5, 2023) Privacy & Security, Tabs Collection of Tab Related Actions e.g. Duplicate, Close Duplicates, Close to the Left, Copy Title, Merge Windows, Save as PDF, Copy Urls Tab/All/Left/Right, Host keep/close/close other, Sort by URL/Title, Asce/Desc, Move, Reload, Reload Timer 2.31 6.56 MB Mozilla Public License 2.0 https://github.com/erosman/support 190.0
Fraidycat 612 38.0 4.8 4 years ago (May 29, 2021) Feeds, News & Blogging, Social & Communication Follow from afar. Follow blogs, wikis, Twitter, Instagram, Tumblr - anyone on nearly any blog-like network - from your browser. No notifications, no unread messages, no 'inbox'. Just a single page overview of all your follows. 1.1.10 1.89 MB MIT License https://fraidyc.at/
Frame 439 10.0 4.5 a year ago (Aug 21, 2024) Feeds, News & Blogging, Web Development This extension connects web apps to Frame. Frame is an Ethereum wallet that runs as a native desktop application. It manages all of your accounts, tokens and items and allows to seamlessly and securely connect them any app. 0.12.1 1.39 MB GNU General Public License v3.0 only https://github.com/floating/frame 1137.0
FrankerFaceZ 99726 113.0 4.4 11 days ago (Jul 9, 2025) Social & Communication, Games & Entertainment The Twitch Enhancement Suite - Get custom emotes and tons of new features you'll never want to go without. 4.77.8.5 6.73 MB All Rights Reserved https://www.frankerfacez.com
Freedom - Website Blocker 2757 31.0 3.2 4 years ago (Apr 23, 2021) Social & Communication, Tabs The Freedom website blocker gives you control over distracting websites, so you can focus on what matters most. 17.0.12 241.62 KB All Rights Reserved https://freedom.to/
French spelling dictionary 284903 240.0 4.4 5 years ago (May 30, 2020) Spelling dictionary for the French language. 7.0b 338.38 KB Mozilla Public License 2.0 https://grammalecte.net
Furiganaize 3073 41.0 4.8 3 years ago (Nov 18, 2022) Language Support, Other Auto insert furigana (振り仮名) on Japanese kanji. 0.7.2 8.23 MB MIT License https://github.com/kuanyui/Furiganaize 76.0
GNOME Shell integration 137271 264.0 4.3 a year ago (Jun 9, 2024) Download Management, Alerts & Updates This extension provides integration with GNOME Shell and the corresponding extensions repository https://extensions.gnome.org 12 136.57 KB GNU General Public License v3.0 only https://gnome.pages.gitlab.gnome.org/gnome-browser-integration/pages/gnome-browser-integration.html
GNU_Terry_Pratchett 1450 22.0 4.7 a year ago (Apr 25, 2024) Social & Communication, Alerts & Updates Display the X-Clacks-Overhead in Clacks Semaphore 0.5resigned1 605.01 KB GNU General Public License v2.0 only
GSConnect 7144 100.0 4.4 5 years ago (Aug 15, 2020) Social & Communication, Other Share links with GSConnect, direct to the browser or by SMS. Requires at least v7 of the Gnome Shell extension to function. 8 53.97 KB GNU General Public License v2.0 only https://github.com/andyholmes/gnome-shell-extension-gsconnect 3423.0
Gemini in Sidebar 1078 8.0 3.6 a year ago (Apr 29, 2024) Search Tools, Social & Communication Displays Gemini in the sidebar, provides customizable keyboard shortcut and toggle button. 1.0.0 27.66 KB MIT License https://gemini.google.com/
Geminize 310 6.0 4.8 5 years ago (Jan 13, 2021) Feeds, News & Blogging, Search Tools Explore Project Gemini sites from Firefox! 1.0.4 89.62 KB MIT License https://gitlab.com/nocylah/geminize 9.0
German Dictionary 234271 106.0 4.3 3 years ago (Nov 23, 2022) German Dictionary (new Orthography) for spellchecking in Firefox 2.1 1.2 MB GNU Lesser General Public License v2.1 only
Gesturefy 91481 1407.0 4.5 a year ago (Aug 3, 2024) Appearance, Other Navigate, operate, and browse faster with mouse gestures! A customizable mouse gesture add-on with a variety of different commands. 3.2.13 659.76 KB GNU General Public License v3.0 only https://github.com/Robbendebiene/Gesturefy 900.0
GhostText 726 32.0 4.8 a year ago (Aug 10, 2024) Web Development, Other Use your text editor to write in your browser. Everything you type in the editor will be instantly updated in the browser (and vice versa). 24.8.10 102.29 KB MIT License https://github.com/fregante/GhostText 3471.0
Ghostery – Privacy Ad Blocker 990552 4648.0 4.3 19 days ago (Jul 2, 2025) Web Development, Privacy & Security The best privacy tool and ad blocker extension for Firefox. Stop trackers, speed up websites and block ads everywhere including YouTube and Facebook. 10.4.39 11.41 MB Mozilla Public License 2.0 http://www.ghostery.com/
GitHub Gloc 382 9.0 4.8 a month ago (Jun 8, 2025) Web Development, Social & Communication Github Gloc - counts locs on GitHub pages 10.0.15 223.57 KB GNU General Public License v2.0 only https://github.com/kas-elvirov/gloc 641.0
GitHub Isometric Contributions 184 12.0 4.9 a year ago (Jul 25, 2024) Appearance, Social & Communication Renders an isometric pixel view of GitHub contribution graphs. 1.1.31 109.56 KB MIT License
GitHub Issue Link Status 82 9.0 5.0 4 months ago (Mar 18, 2025) Web Development, Appearance, Other Colorize issue and PR links to see their status (open, closed, merged) 25.3.18 317.75 KB MIT License https://github.com/fregante/github-issue-link-status 302.0
Gitako - Github file tree 230 26.0 4.9 a year ago (Jul 7, 2024) Other Gitako is a file tree extension for GitHub, available on Firefox, Chrome, and Edge. Video intro: https://youtu.be/r4Ein-s2pN0 Homepage: https://github.com/EnixCoda/Gitako 3.12.1 2.1 MB MIT License https://github.com/EnixCoda/Gitako 2463.0
Gitpod - Always ready to code. 2011 26.0 4.8 a month ago (Jun 10, 2025) Web Development Gitpod streamlines developer workflows by providing ready-to-code development environments in your browser - powered by VS Code. 2.4.1 298.77 KB MIT License http://www.gitpod.io
Google Cal Event Merge 667 21.0 4.3 6 years ago (Jul 1, 2019) Appearance, Social & Communication Chrome extension that visually merges the same event on multiple Google Calendars into one event. Source: https://github.com/imightbeamy/gcal-multical-event-merge 2.2.1 153.09 KB GNU General Public License v3.0 only
Google Container 9992 195.0 4.2 4 years ago (Mar 3, 2021) Privacy & Security, Social & Communication THIS IS NOT AN OFFICIAL ADDON FROM MOZILLA! It is a fork of the Facebook Container addon. Prevent Google from tracking you around the web. The Google Container extension helps you take control and isolate your web activity from Google. 1.5.4 26.16 KB Mozilla Public License 2.0 https://github.com/containers-everywhere/contain-google 414.0
Gopass Bridge 318 11.0 4.6 8 months ago (Nov 17, 2024) Privacy & Security Gopass Bridge allows searching, inserting and managing login credentials from the gopass password manager. 2.1.0 132.75 KB MIT License https://github.com/gopasspw/gopassbridge 278.0
Grammar and Spell Checker - LanguageTool 378374 4541.0 4.7 3 months ago (Apr 8, 2025) Language Support, Social & Communication With this extension you can check text with the free style and grammar checker LanguageTool. It finds many errors that a simple spell checker cannot detect, like mixing up there/their, a/an, or repeating a word. 8.19.4 14.02 MB All Rights Reserved https://languagetool.org
Grammarly: AI Writing and Grammar Checker App 668292 3180.0 4.1 13 days ago (Jul 8, 2025) Language Support, Social & Communication, Other Improve your writing with Grammarly's AI assistance. Get spell check, grammar check, generative AI, and more in one tool. Real-time suggestions for improving tone and clarity help ensure your writing makes the impression you want. 8.932.0 38.12 MB Custom License http://grammarly.com
Granted: access multiple AWS accounts at once 3660 9.0 4.6 2 years ago (Mar 21, 2023) Web Development View multiple cloud accounts and regions in a single browser. 1.1.2 274.18 KB MIT License
Greasemonkey 170806 1270.0 4.2 a year ago (Aug 5, 2024) Other Customize the way a web page displays or behaves, by using small bits of JavaScript. 4.13 615.72 KB MIT License http://www.greasespot.net/
Gruvbox Dark Theme 1381 48.0 4.9 5 years ago (Jun 24, 2020) Solid Gruvbox dark theme for Firefox. Using https://github.com/morhetz/gruvbox color palette 1.1 7.56 KB Creative Commons Attribution 3.0 https://codeberg.org/calvinchd/GruvboxDarkFirefoxTheme 0.0
HacKontext 9 2 months ago (May 6, 2025) Other Copy parameters to your favourite infosec tool. 1.4 51.05 KB GNU General Public License v3.0 only https://github.com/D3vil0per/hackontext 20.0
HackTools 2663 46.0 4.7 3 years ago (Jan 29, 2022) Web Development, Privacy & Security Hacktools, is a web extension facilitating your web application penetration tests, it includes cheat sheets as well as all the tools used during a test such as XSS payloads, Reverse shells to test your web application. 0.4.0 1.47 MB GNU Lesser General Public License v3.0 only https://github.com/LasCC/Hack-Tools 6180.0
Header Editor 11293 181.0 4.7 6 years ago (Dec 20, 2019) Web Development, Other Manage browser's requests, include modify the request headers and response headers, redirect requests, cancel requests 4.1.1 455.62 KB GNU General Public License v2.0 only https://he.firefoxcn.net/en/
History Cleaner 15861 186.0 4.7 7 months ago (Dec 11, 2024) Privacy & Security Deletes browsing history older than a specified number of days. 1.7.0 110.63 KB MIT License https://github.com/Rayquaza01/HistoryCleaner 94.0
HistoryBlock 2002 57.0 4.1 a year ago (Apr 25, 2024) Privacy & Security Cover your tracks! 2.1resigned1 381.74 KB Mozilla Public License 2.0 https://github.com/kainsavage/HistoryBlock 37.0
Hoppscotch Extension for Firefox 3715 18.0 4.8 8 months ago (Nov 26, 2024) Web Development Removes CORS restrictions for cross-origin requests, particularly those to localhost. It essentially allows Hoppscotch to make requests that might otherwise be blocked by the browser's security policies. 0.37 466.75 KB MIT License https://github.com/hoppscotch/hoppscotch-extension 275.0
Hover Zoom+ (Official) 10916 73.0 3.9 a month ago (Jun 25, 2025) Photos, Music & Videos Zoom images/videos on all your favorite websites (Facebook, Amazon, etc). Simply hover your mouse over the image to enlarge it. 1.1.5 1.54 MB MIT License https://github.com/extesy/hoverzoom/ 1720.0
Hulu Ad Blocker 1248 18.0 2.6 3 years ago (Apr 7, 2022) Privacy & Security, Photos, Music & Videos Block All Hulu Ads, Stream Freely! 1.0.0 46.51 KB Mozilla Public License 2.0 https://www.huluadblocker.com
HyperChat [Improved YouTube Chat] 4514 62.0 4.6 2 months ago (May 20, 2025) Social & Communication, Games & Entertainment Improved YouTube chat with CPU/RAM optimizations, customization options, and cutting-edge features! 3.1.0 1.2 MB GNU General Public License v3.0 only https://livetl.app/hyperchat/
I don't care about cookies 268979 1843.0 3.1 2 years ago (Nov 30, 2023) Privacy & Security, Appearance, Other Get rid of cookie warnings from almost all websites! 3.5.0 444.82 KB GNU General Public License v3.0 only https://www.i-dont-care-about-cookies.eu/
I still don't care about cookies 96167 395.0 4.7 2 years ago (Jan 3, 2024) Privacy & Security, Appearance Community version of the popular extension "I don't care about cookies" https://github.com/OhMyGuus/I-Dont-Care-About-Cookies 1.1.4 518.04 KB GNU General Public License v3.0 only https://github.com/OhMyGuus/I-Dont-Care-About-Cookies 3878.0
I2P In Private Browsing 221 30.0 2.6 5 months ago (Feb 20, 2025) Privacy & Security, Other, Tabs Uses Container Tabs to set up a browser to use I2P conveniently and safely by setting up an I2P-powered Private Browsing mode, inspired by the similar feature in Brave. Requires an I2P router on the host system. 2.8.2 6.6 MB MIT License https://github.com/eyedeekay/i2psetproxy.js 70.0
IPFS Companion 3515 73.0 4.8 5 months ago (Mar 3, 2025) Web Development, Download Management, Other Harness the power of IPFS in your browser 3.2.0 3.01 MB CC0 1.0 Universal https://github.com/ipfs/ipfs-companion 2136.0
IPvFoo 6500 40.0 4.8 a month ago (Jun 14, 2025) Web Development, Privacy & Security Display the server IP address, with a realtime summary of IPv4, IPv6, and HTTPS information across all page elements. 2.24 52.38 KB Apache License 2.0 https://github.com/pmarks-net/ipvfoo 645.0
Image Search Options 39447 435.0 4.6 6 years ago (Jun 27, 2019) Search Tools, Photos, Music & Videos A customizable reverse image search tool that conveniently presents a variety of top image search engines. 3.0.12 147.96 KB Mozilla Public License 1.1 http://saucenao.com/
Imagus 59252 876.0 4.4 5 years ago (Apr 12, 2020) Photos, Music & Videos With a simple mouse-over you can enlarge images and display images/videos from links. 0.9.8.74 155.75 KB Custom license https://tiny.cc/Imagus
Immersive Translate - Translate Website & PDF 83507 327.0 4.6 a month ago (Jun 12, 2025) Appearance, Language Support Free Translate Website, Translate PDF & Epub eBook, Translate Video Subtitles in Bilingual 1.18.1 5.51 MB All Rights Reserved https://immersivetranslate.com
Impulse Blocker 11882 290.0 4.2 5 years ago (Jan 17, 2021) Privacy & Security, Other Block distracting websites. Just list the sites you want Impulse Blocker to pause or completely avoid. 1.2.0 1.09 MB MIT License https://github.com/raicem/impulse-blocker 171.0
Incognito/Normal 251 6.0 4.3 a year ago (Apr 26, 2024) Privacy & Security Quickly switch current tab, link or search text to Google from incognito window to normal window, or vice versa. 1.2.1resigned1 35.9 KB Mozilla Public License 2.0
Indie Wiki Buddy 61811 191.0 4.9 a month ago (Jun 21, 2025) Privacy & Security, Search Tools, Games & Entertainment Helping you discover quality, independent wikis! When visiting a Fandom wiki, Indie Wiki Buddy redirects or alerts you of independent alternatives. It also filters search engine results. BreezeWiki is also supported, to reduce clutter on Fandom. 3.13.6 729.24 KB MIT License https://getindie.wiki/
Inkah: Learn Chinese & Korean on the Web & Netflix 387 20.0 4.9 3 years ago (Dec 12, 2022) Language Support, Social & Communication, Other Look up Chinese & Korean words. Split sentences into their individual words. Learn while browsing the web by hovering words and learn from Youtube and Netflix with double subtitles. 1.0.43 27.81 MB All Rights Reserved https://www.inkah.com
Instapaper 13101 114.0 4.4 9 months ago (Nov 4, 2024) Feeds, News & Blogging, Bookmarks Instapaper is a simple tool for saving web pages to read later on your iPhone, iPad, Android, computer, or Kindle. The Instapaper browser extension may be used to save the current page directly into your Instapaper account. 3.1.3 184.21 KB Proprietary
JS Search Extension 10 1.0 5.0 4 years ago (Jan 31, 2021) Search Tools, Language Support The ultimate search extension for Javascript! 0.1 89.88 KB All Rights Reserved https://js.extension.sh
JShelter 477 44.0 4.5 a month ago (Jun 17, 2025) Web Development, Privacy & Security JShelter controls the APIs provided by the browser. The goal is to improve the privacy and security of the user running the extension. 0.21 467.2 KB GNU General Public License v3.0 only https://jshelter.org
JabRef Browser Extension 2267 21.0 3.6 3 years ago (Jan 23, 2022) Other Browser extension for users of the bibliographic reference manager JabRef. It automatically identifies and extracts bibliographic information on websites and sends them to JabRef with one click. 2.5 527.28 KB Affero General Public License v3.0 http://www.jabref.org/
Joplin Web Clipper 12844 158.0 4.8 2 years ago (Apr 6, 2023) Other Capture and save web pages and screenshots from your browser to Joplin. The Joplin application is required to get this extension working - https://joplinapp.org 2.11.2 284.97 KB MIT License https://joplinapp.org
Jump Cutter 651 25.0 4.9 4 months ago (Mar 31, 2025) Photos, Music & Videos Watch videos up to 2x faster by automatically skipping long pauses between sentences 1.30.0 302.64 KB GNU Affero General Public License v3.0 or any later version
JustDeleteMe 725 5.0 4.8 18 days ago (Jul 2, 2025) Privacy & Security, Alerts & Updates, Other JustDeleteMe.xyz extension for Firefox-based browsers. 1.6.0 37.22 KB MIT License
KISS Translator 1505 16.0 4.9 a year ago (May 23, 2024) Language Support A simple bilingual translation extension & Greasemonkey script 1.8.11 864.67 KB GNU General Public License v3.0 only https://github.com/fishjar/kiss-translator 3956.0
Kagi Privacy Pass 703 8.0 4.9 a month ago (Jun 18, 2025) Privacy & Security, Search Tools Enables use of Privacy Pass to authenticate with Kagi Search. 1.0.7 247.72 KB MIT License https://kagi.com
Kagi Search for Firefox 18738 81.0 4.7 6 months ago (Feb 1, 2025) Privacy & Security, Search Tools A simple helper extension for setting Kagi as a default search engine, and automatically logging in to Kagi in private browsing windows. 0.7.6 41.05 KB MIT License https://kagi.com
Karakeep 1633 17.0 5.0 a month ago (Jun 8, 2025) Bookmarks An extension to bookmark links to karakeep.app 1.2.6 204.58 KB GNU Affero General Public License v3.0 only https://karakeep.app
KeePass Helper - URL in title 389 28.0 4.4 a year ago (Apr 25, 2024) Privacy & Security, Appearance, Tabs Puts a hostname or a URL in the window title. It does not modify the title of a tab, just the window title. It does not inject any JavaScript code to a website, so it can't corrupt, nor can it be corrupted by it. 1.4resigned1 10.58 KB Mozilla Public License 2.0
KeePassXC-Browser 114957 700.0 4.3 17 days ago (Jul 3, 2025) Privacy & Security Official browser plugin for the KeePassXC password manager (https://keepassxc.org). 1.9.9.1 963.14 KB GNU General Public License v3.0 only https://keepassxc.org/
Keepa.com - Amazon Price Tracker 254791 592.0 4.4 a year ago (Mar 30, 2024) Alerts & Updates, Shopping → Price History charts → Price Drop & Availability Alerts → Over 1 billion tracked products → Supports Amazon .com | .co.uk | .de | .co.jp | .fr | .ca | .it | .es | .in | .mx 4.19 73.74 KB Source Code License https://Keepa.com
Keeper® Password Manager & Digital Vault 60044 882.0 4.2 2 months ago (May 23, 2025) Download Management, Privacy & Security Protect and autofill passwords with the world's most trusted and #1 downloaded secure password manager and digital vault. 17.1.2 86 MB Keeper Security License http://keepersecurity.com/
Keybase 263 42.0 4.0 a year ago (Apr 25, 2024) Privacy & Security, Social & Communication A secure chat button for every profile. 1.10.17resigned1 437.08 KB BSD 2-Clause "Simplified" License https://keybase.io/docs/extension
Laboratory (Content Security Policy / CSP Toolkit) 2184 64.0 4.6 4 years ago (Jan 27, 2021) Web Development, Privacy & Security, Other Because good website security shouldn't only be available to mad scientists! Laboratory is a WebExtension that helps you generate a Content Security Policy (CSP) header for your website. 3.0.8 399.15 KB Mozilla Public License 2.0 https://github.com/april/laboratory 181.0
Language: Dansk (Danish) 168470 31.0 4.4 3 days ago (Jul 17, 2025) Firefox Language Pack for Dansk (da) – Danish 141.0.20250717.180000 421.9 KB Mozilla Public License 2.0
Language: Deutsch (German) 1084472 1298.0 4.1 3 days ago (Jul 17, 2025) Firefox Language Pack for Deutsch (de) – German 141.0.20250717.180000 442.93 KB Mozilla Public License 2.0
Language: Français (French) 937748 1414.0 4.2 3 days ago (Jul 17, 2025) Firefox Language Pack for Français (fr) – French 141.0.20250717.180000 448.32 KB Mozilla Public License 2.0
Language: Gàidhlig (Scottish Gaelic) 105859 1.0 5.0 3 days ago (Jul 17, 2025) Firefox Language Pack for Gàidhlig (gd) – Scottish Gaelic 141.0.20250717.180000 389.4 KB Mozilla Public License 2.0
Language: Scots 105749 6.0 4.7 3 days ago (Jul 17, 2025) Firefox Language Pack for Scots (sco) 141.0.20250717.180000 314.97 KB Mozilla Public License 2.0
LastPass Password Manager 468424 8911.0 3.7 5 days ago (Jul 15, 2025) Privacy & Security, Social & Communication LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device. 4.145.0 37.06 MB Custom License https://lastpass.com/
LeechBlock NG 101714 1801.0 4.8 2 months ago (Jun 4, 2025) Other LeechBlock NG is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them. 1.7 433.76 KB Mozilla Public License 2.0 https://www.proginosko.com/leechblock/
Lexicon (Instant Dictionary) 71 11.0 3.5 4 months ago (Mar 19, 2025) Search Tools, Language Support Quickly Define Words While You Browse By Just Double Clicking On The Word, Create and Organize Your Own Word Bank With Personal Dictionary 1.7.0 59.71 KB GNU General Public License v3.0 only https://github.com/akvedi/lexicon 9.0
LibKey Nomad 10880 10.0 5.0 23 days ago (Jun 27, 2025) Search Tools One-click access to millions of scholarly articles. 1.48.0 4.6 MB All Rights Reserved https://thirdiron.com/libkey-nomad/
LibRedirect 7618 167.0 4.5 22 days ago (Jun 28, 2025) Privacy & Security, Social & Communication Redirects YouTube, Twitter, TikTok... requests to alternative privacy friendly frontends. 3.2.0 1.1 MB GNU General Public License v3.0 only https://libredirect.github.io
Limit - Limit Distracting Sites 3927 47.0 4.2 5 years ago (Mar 20, 2020) Other Limit your time spent on distracting sites. Limit is an extension that allows you to set time limits for distracting websites. 0.1.4 740.51 KB All Rights Reserved https://freedom.to
LingQ Importer 6430 19.0 4.1 a month ago (Jun 23, 2025) Language Support Automatically import foreign language pages, videos, movies from the web & study them with LingQ's web & mobile language learning apps. 2.3.6 244.62 KB GNU General Public License v3.0 only https://www.lingq.com/
Link Cleaner 2281 112.0 3.9 a year ago (Apr 25, 2024) Privacy & Security, Shopping Clean URLs that are about to be visited: - removes utm_* parameters - on item pages of aliexpress and amazon, removes tracking parameters - skip redirect pages of facebook, steam and reddit 1.6resigned1 9.17 KB GNU General Public License v3.0 only https://github.com/idlewan/link_cleaner 100.0
Link Gopher 16220 173.0 4.5 2 years ago (Oct 20, 2023) Other Extracts all links from web page, sorts them, removes duplicates, and displays them in a new tab for inspection or copy and paste into other systems. 2.6.2 36.61 KB GNU General Public License v3.0 only http://sites.google.com/site/linkgopher/
Link Hints 571 27.0 4.9 a year ago (Sep 3, 2024) Other Click with your keyboard. 1.3.3 161.98 KB MIT License https://lydell.github.io/LinkHints
Linkwarden 1742 24.0 4.9 3 months ago (May 3, 2025) Bookmarks, Social & Communication The browser extension for Linkwarden. 1.3.3 198.95 KB MIT License
LiveTL - Live Translations for Streams 4191 109.0 4.7 2 months ago (May 20, 2025) Language Support, Photos, Music & Videos Get live translations for YouTube and Twitch streams, crowdsourced from multilingual viewers! 9.0.7 2.48 MB GNU Affero General Public License v3.0 https://livetl.app/
LocalCDN 17632 237.0 4.8 a month ago (Jun 22, 2025) Privacy & Security Emulates remote frameworks (e.g. jQuery, Bootstrap, AngularJS) and delivers them as local resource. Prevents unnecessary 3rd party requests to Google, StackPath, MaxCDN and more. Prepared rules for uBlock Origin/uMatrix. 2.6.80 21.98 MB Mozilla Public License 2.0 https://www.localcdn.org
Lovely forks 272 15.0 4.9 a year ago (Mar 30, 2024) Search Tools, Appearance, Social & Communication Show notable forks of Github projects. 3.7.3 957.34 KB Mozilla Public License 2.0 https://github.com/musically-ut/lovely-forks 638.0
MAL-Sync 12331 211.0 4.8 2 months ago (May 12, 2025) Feeds, News & Blogging, Search Tools, Social & Communication MAL-Sync enables automatic episode tracking between MyAnimeList/Anilist/Kitsu/Simkl and multiple anime streaming websites. 0.12.0 19.37 MB GNU General Public License v3.0 only https://github.com/lolamtisch/MALSync 2547.0
Mailvelope 26446 124.0 4.0 2 months ago (May 19, 2025) Privacy & Security Protect your email conversations and attachments on Gmail, Nextcloud, Outlook and more with PGP and end-to-end encryption. 6.1.0 3.19 MB GNU General Public License v3.0 only https://www.mailvelope.com/
MarkDownload - Markdown Web Clipper 9109 104.0 4.9 3 years ago (Sep 23, 2022) Feeds, News & Blogging This extension works like a web clipper, but it downloads articles in a markdown format. Turndown and Readability.js are used as core libraries. It is not guaranteed to work with all websites. 3.2.0 406.45 KB Custom License https://github.com/deathau/markdown-clipper 3387.0
Material Icons for Github 1150 29.0 5.0 a month ago (Jun 24, 2025) Web Development, Appearance Replace the file/folder icons on github file browsers with icons representing the file's type and which tool it is used by. 1.10.5 1.1 MB MIT License https://github.com/Claudiohbsantos/github-material-icons-extension 659.0
Matte Black (Red) 20456 1227.0 4.8 3 years ago (Feb 24, 2022) Solid A modern dark / Matte Black theme with a red accent color. Click my name for more accents (request if not available). 2022.2.23 7.61 KB Creative Commons Attribution-NonCommercial-Share Alike 3.0 https://elijahlopez.ca/
Mergify 44 3.0 5.0 2 months ago (May 13, 2025) Web Development Mergify extension for GitHub 1.0.27 17.34 KB Apache License 2.0
MetaGer Search 7437 77.0 4.6 a month ago (Jun 19, 2025) Privacy & Security, Search Tools Privacy has never been so easy. Sets MetaGer as your default search engine and manages search settings for you. 1.15 1,006.32 KB GNU General Public License v3.0 only https://metager.org/kontakt
MetaMask – Crypto Wallet 384407 4263.0 4.2 2 months ago (May 16, 2025) Other The most secure wallet for crypto, NFTs, and DeFi, trusted by millions of users 12.17.3 22.69 MB Custom License
Moderator toolbox for reddit 2517 26.0 4.4 18 days ago (Jul 3, 2025) Social & Communication This is bundled extension of the /r/toolbox moderator tools for reddit.com Containing: Mod Tools Enhanced Mod Button Mod Mail Pro Mod Domain Tagger Toolbox Notifier Mod User Notes Toolbox Config 6.1.20 1.3 MB Apache License, Version 2.0 https://www.reddit.com/r/toolbox
Modrinthify 158 9.0 5.0 2 months ago (May 11, 2025) Download Management, Search Tools Automatically searches Modrinth for Curseforge mods and displays Modrinth notifications in the toolbar! 1.7.2 46.91 KB MIT License https://github.com/devBoi76/modrinthify 41.0
Momentum 33815 806.0 4.4 10 days ago (Jul 11, 2025) Appearance, Tabs Transform your browser into a beautifully designed tab that helps you feel calm, keep focus, and stay energized. 2.24.5 18.58 MB All Rights Reserved https://momentumdash.com
Move unloaded tabs for Tree Style Tab 730 17.0 4.9 5 years ago (Mar 21, 2020) Appearance, Other, Tabs Move tabs in the Tree Style Tab Sidebar without them becoming active. 2.4 16.15 KB GNU General Public License v3.0 only https://github.com/Lej77/move-unloaded-tabs-for-tree-style-tab 10.0
Multiple Tab Handler 3178 119.0 3.7 2 months ago (May 24, 2025) Appearance, Tabs Allows you to select tabs by dragging and do something. 3.2.1 114.26 KB Mozilla Public License 2.0 http://piro.sakura.ne.jp/xul/_multipletab.html.en
Multiselect for YouTube™ 3503 138.0 4.3 10 months ago (Oct 3, 2024) Photos, Music & Videos, Games & Entertainment Move, sort, and copy videos in your playlists faster and easier. 3.7 107.79 KB Mozilla Public License 2.0 https://ms4yt.com/
Native MathML 1233 12.0 4.8 3 years ago (Dec 26, 2022) Other Force MathJax/KaTeX/MediaWIki to use native MathML rendering. 1.9.6 21.64 KB Mozilla Public License 2.0 https://github.com/fred-wang/webextension-native-mathml 21.0
NekoCap 384 7.0 5.0 19 days ago (Jul 2, 2025) Photos, Music & Videos, Games & Entertainment Create and upload community captions for YouTube videos (and more) with this easy to use extension that supports SSA/ASS rendering. 1.18.0 4.85 MB GNU General Public License v3.0 only https://nekocap.com
New Tab Override 60597 1000.0 4.4 5 months ago (Feb 22, 2025) Tabs New Tab Override allows you to set the page that shows whenever you open a new tab. 17.0.0 68.62 KB Mozilla Public License 2.0 https://www.soeren-hentzschel.at/firefox-webextensions/new-tab-override/
New Tong Wen Tang 9490 169.0 4.5 7 months ago (Dec 29, 2024) Appearance, Language Support Traditional and Simplified Chinese Converter 2.4.0 270.16 KB MIT License https://github.com/softcup/New-Tongwentang-for-Firefox 95.0
New Zealand English Dictionary 2760 12.0 4.8 a year ago (Apr 25, 2024) New Zealand English Dictionary 1.0.1 for Firefox. 1.0.1.3resigned1 227.16 KB GNU Lesser General Public License v2.1 only
New window without toolbar 1507 45.0 4.3 6 years ago (Apr 10, 2019) Appearance, Other, Tabs Open current page in new window without toolbar. 1.3.0 18.55 KB MIT License
NewTab Adapter 100 4.0 5.0 5 years ago (Aug 26, 2020) Appearance Take over browser's new tab settings and open another configurable URL 1.3.0 35.68 KB MIT License https://github.com/gdh1995/vimium-c-helpers/tree/master/newtab 49.0
News Feed Eradicator 7620 156.0 4.6 a year ago (Jun 9, 2024) Feeds, News & Blogging, Appearance, Social & Communication Find yourself spending too much time on Facebook? Eradicate distractions by replacing your entire news feed with an inspiring quote 2.2.7 107.85 KB MIT License https://west.io/news-feed-eradicator
Ninja Cookie 3587 86.0 3.2 5 years ago (Aug 14, 2020) Privacy & Security, Appearance Ninja Cookie removes cookie banners by rejecting the use of non-essential cookies. 0.2.7 267.91 KB All Rights Reserved https://ninja-cookie.com/
Nitter Redirect 1762 40.0 4.4 5 years ago (Jul 26, 2020) Privacy & Security Redirects Twitter requests to Nitter, the privacy friendly alternative. 1.1.5 22.4 KB MIT License https://github.com/SimonBrazell/nitter-redirect 175.0
Nixpkgs PR Tracker 13 17 days ago (Jul 4, 2025) Other Shows which branch a Nixpkgs PR is merged into. 0.1.1 29 KB MIT License
No PDF Download 3534 55.0 4.3 6 years ago (Jun 7, 2019) Download Management, Appearance Opens all PDF files directly in the browser. 1.0.6 12.72 KB MIT License https://github.com/MorbZ/no-pdf-download 19.0
No Tabs 98 8.0 4.5 a year ago (Apr 25, 2024) Tabs Disable tabs completely, by always opening a new window instead. 1.2resigned1 114.33 KB GNU General Public License v3.0 only https://gitlab.com/adsum/firefox-notabs 1.0
NoScript Security Suite 265326 2388.0 4.4 2 months ago (May 20, 2025) Privacy & Security, Alerts & Updates The best security you can get in a web browser! Allow potentially malicious web content to run only from sites you trust. Protect yourself against XSS other web security exploits. 13.0.8 969.87 KB GNU General Public License v2.0 only https://noscript.net
Nord 91 14.0 5.0 5 years ago (Dec 10, 2020) Firefox A theme with the nord color scheme. 1.1 8.13 KB Creative Commons Attribution 3.0
Nord Polar Night Theme 1641 86.0 4.9 4 years ago (Jun 2, 2021) Abstract https://paypal.me/christosbouronikos 1.18 8.13 KB Creative Commons Attribution-ShareAlike 3.0 https://github.com/ChristosBouronikos/Nord-Polar-Night-Theme 13.0
Notifier for GitHub 490 26.0 5.0 a year ago (Apr 24, 2024) Web Development, Alerts & Updates, Other Get notified about new GitHub notifications 24.4.24 74.91 KB MIT License https://github.com/sindresorhus/notifier-for-github 1911.0
Notion Web Clipper 39090 200.0 4.0 4 years ago (Apr 28, 2021) Feeds, News & Blogging, Bookmarks Use our Web Clipper to save any website into Notion. 0.3.2 3.65 MB All Rights Reserved https://www.notion.so/web-clipper
Nyaa Linker 56 4.0 5.0 2 months ago (May 13, 2025) Download Management, Search Tools Adds a button to Anime and Manga database websites that opens a relevant Nyaa search 2.2.0 44.1 KB GNU General Public License v3.0 only
OMORI Headspace 7 2.0 5.0 2 years ago (Feb 13, 2023) Other This theme will skin your UI to look like the Headspace sky from OMORI! 1.0 17.42 KB Creative Commons Attribution-NonCommercial 3.0
Obsidian Web Clipper 26471 202.0 4.9 2 months ago (May 19, 2025) Download Management, Privacy & Security, Social & Communication Save and highlight web pages in a private and durable format that you can access offline. The official browser extension for Obsidian. 0.11.8 1.23 MB MIT License https://obsidian.md/clipper
OctoLinker 473 27.0 4.9 3 years ago (Nov 13, 2022) Web Development, Other It turns language-specific module-loading statements like include, require or import into links. Depending on the language it will either redirect you to the referenced file or to an external website like a manual page or another service. 6.10.5 190.37 KB MIT License https://octolinker.vercel.app
Octotree - GitHub code tree 3311 237.0 4.8 2 months ago (May 11, 2025) Web Development GitHub on steroids 8.1.3 3.52 MB Octotree's Terms of Use https://github.com/buunguyen/octotree/ 23025.0
Offline QR Code Generator 22063 230.0 4.8 10 months ago (Sep 8, 2024) Privacy & Security, Appearance, Tabs This add-on allows you to quickly generate a QR code offline with the URL of the open tab or any (selected) other text! 👍 It works completely offline protecting your privacy and has a big range of features like colored QR codes! 1.9 331.88 KB MIT License https://github.com/rugk/offline-qr-code 455.0
Okta Browser Plugin 61120 116.0 3.6 4 months ago (Mar 27, 2025) Privacy & Security Okta Browser Plugin 6.39.0 3.13 MB All Rights Reserved https://www.okta.com
Old Reddit Redirect 63486 292.0 4.7 17 days ago (Jul 3, 2025) Feeds, News & Blogging, Appearance, Social & Communication Ensure Reddit always loads the old design 2.0.9 33.36 KB MIT License https://github.com/tom-james-watson/old-reddit-redirect 459.0
Omni - Manage Tabs, Bookmarks, History... 193 19.0 3.9 3 years ago (Mar 22, 2022) Bookmarks, Tabs Supercharge Firefox with commands, shortcuts, and more 1.4.5 1.96 MB MIT License https://github.com/alyssaxuu/omni 7540.0
Omnivore 2118 35.0 4.3 a year ago (Mar 7, 2024) Feeds, News & Blogging, Bookmarks Omnivore is the read-it-later app for serious readers. Distraction free. Privacy focused. Open source. 2.10.0 178.92 KB GNU General Public License v3.0 only https://omnivore.app/
One-click Wayback 40 1.0 5.0 5 years ago (Oct 11, 2020) Search Tools, Appearance View cached versions of your current page in the Wayback Machine. 0.2 8.99 KB Mozilla Public License 2.0 https://git.sr.ht/~tomf/one-click-wayback
OneTab 160161 2628.0 4.2 2 years ago (Oct 1, 2023) Bookmarks, Tabs OneTab - Too many tabs? Convert tabs to a list and reduce browser memory 1.83 1.3 MB Custom License http://www.one-tab.com
Open In mpv 187 3.0 5.0 6 months ago (Jan 7, 2025) Photos, Music & Videos Open videos and audio files in the mpv player and other compatible players. 2.4.3 43.89 KB GNU General Public License v3.0 only https://github.com/Baldomo/open-in-mpv 160.0
Open external links in a container 1776 60.0 4.9 5 years ago (May 9, 2020) Privacy & Security, Tabs This extension enables support for opening links in specific containers using custom protocol handler. It works for terminal, OS shortcuts and regular HTML pages. 1.0.3 30.6 KB Mozilla Public License 2.0
Open in Browser 1852 42.0 4.3 6 years ago (Jan 8, 2020) Download Management, Other Offers the possibility to display documents in the browser window. 2.11 1.19 MB Mozilla Public License 2.0 https://github.com/Rob--W/open-in-browser 89.0
Open in Freedium 654 5.0 3.8 2 years ago (Dec 27, 2023) Other Easily open Medium articles in Freedium to bypass restrictions 1.1.0 31.32 KB MIT License https://github.com/wywywywy/freedium-browser-extension 107.0
Open in VLC media player 23478 254.0 4.3 3 months ago (Apr 13, 2025) Photos, Music & Videos, Games & Entertainment Adds a context menu item to send audio/video streams directly to VLC media player 0.4.4 102.33 KB Mozilla Public License 2.0 https://webextension.org/listing/open-in-vlc.html
Org Capture 420 14.0 4.9 a year ago (Apr 25, 2024) Web Development, Other, Tabs A helper for capturing things via org-protocol in emacs: First, set up: http://orgmode.org/worg/org-contrib/org-protocol.html or https://github.com/sprig/org-capture-extension See https://youtu.be/zKDHto-4wsU for example usage 0.2.2resigned1 50.14 KB MIT License https://github.com/sprig/org-capture-extension 548.0
OverbiteWX 1122 16.0 4.9 a year ago (Apr 25, 2024) Other Re-enables the Gopher protocol in Firefox 56 and above, allowing you to enter Gopher URLs and click on Gopher links. Because WebExtensions does not yet have a TCP sockets API, this version redirects your requests to the Floodgap Public Gopher Proxy. 0.4.2resigned1 9.06 KB Mozilla Public License 2.0
Overview 21 8.0 4.4 a year ago (Apr 25, 2024) Other Give an overview of a page's headings in a sidebar. The sidebar has links towards each heading in the current page, making it easy to understand the structure and navigate inside the page. 0.5.1resigned1 15.32 KB MIT License https://gitlab.petton.fr/DamienCassou/overview
Paperpile 1469 6.0 3.8 6 months ago (Jan 21, 2025) Other Collect, organize, annotate and cite your research papers in Firefox. 1.0.71 6.11 MB All Rights Reserved https://paperpile.com/?welcome
PassFF 1415 53.0 4.5 3 months ago (Apr 20, 2025) Privacy & Security Add-on that allows users of the unix password manager 'pass' (see https://www.passwordstore.org/) to access their password store from Firefox 1.22.1 89.89 KB GNU General Public License v2.0 only https://codeberg.org/PassFF/passff 27.0
Passbolt - Open source password manager for teams 28525 57.0 4.4 12 days ago (Jul 9, 2025) Privacy & Security Passbolt is an open source password manager designed for collaboration. Securely create, manage and monitor your passwords. Share them instantly with your team. 5.3.0 5 MB GNU AGPL V3.0 https://www.passbolt.com
PeerTubeify 137 14.0 4.8 a year ago (Apr 25, 2024) Privacy & Security, Search Tools PeerTubeify allows to redirect between YouTube and PeerTube and across PeerTube instances, automatically or by displaying a link. Don't forget to set your preferences :) PeerTubeify is not affiliated with PeerTube. 0.6.1resigned1 51.34 KB GNU General Public License v3.0 only https://gitlab.com/Ealhad/peertubeify 54.0
Penetration Testing Kit 1233 14.0 4.7 2 months ago (May 12, 2025) Web Development Attention! This version is no longer supported. Use /firefox/addon/owasp-penetration-testing-kit/ extension instead. 8.9.3 7.22 MB MIT License https://pentestkit.co.uk/
PersistentPin 981 42.0 4.5 3 years ago (Mar 12, 2022) Other, Tabs Pins the same websites across browser restarts. 1.1.1 630.44 KB MIT License https://github.com/Faerbit/persistentpin-webextension 20.0
Pinboard 109 3.0 4.7 5 years ago (May 29, 2020) Bookmarks, Tabs Unofficial Firefox add-on for Pinboard.in. Bookmark web pages & add notes easily. Keyboard command: Alt + p 5.0.0 57.78 KB Mozilla Public License 2.0 https://browsernative.com/mozilla-firefox-extensions/
Pipewire Screenaudio 482 8.0 4.5 2 years ago (Oct 26, 2023) Social & Communication Passthrough pipewire audio to WebRTC screenshare 0.3.4 18.66 KB GNU General Public License v3.0 only https://github.com/IceDBorn/pipewire-screenaudio 174.0
Plasma Integration 69944 476.0 4.7 a year ago (Jun 5, 2024) Appearance, Other Multitask efficiently by controlling browser functions from the Plasma desktop. 1.9.1 240.99 KB GNU General Public License v3.0 only http://kde.org
Play to Kodi 614 17.0 4.4 a year ago (Apr 25, 2024) Appearance, Photos, Music & Videos Play, queue and remote control your favourite online media on Kodi / XBMC. This is a port of an add-on developed originally for Google Chrome. 1.9.2resigned1 304.95 KB GNU General Public License v3.0 only https://github.com/maciex/play-to-kodi 25.0
Playback speed 4695 63.0 4.9 4 years ago (Nov 7, 2021) Appearance, Photos, Music & Videos Control the speed of video playback. 1.4.4 61.92 KB GNU General Public License v2.0 only https://github.com/fx4waldi/playbackSpeed 34.0
Polish Spellchecker Dictionary 89951 62.0 4.8 a year ago (Apr 25, 2024) Polish spell-check dictionary for Firefox, Thunderbird and SeaMonkey. 1.0.20160228.2resigned1 1.1 MB Mozilla Public License 1.1 http://www.aviary.pl/
Print Edit WE 37568 466.0 4.1 3 months ago (Apr 22, 2025) Appearance Edit the contents of a web page prior to printing or saving. Elements in the web page can be edited, formatted, hidden or deleted. Unwanted content, such as adverts and sidebars, can easily be removed. 29.7 114.65 KB GNU General Public License v2.0 only
Print Friendly & PDF 49852 526.0 4.1 3 years ago (May 27, 2022) Feeds, News & Blogging, Privacy & Security, Bookmarks Makes a Printer Friendly & PDF version of any webpage. Removes navigation, ads, and junk. Formats the page for print so you save paper and ink. Good for the environment and your wallet. 5.3.0 795.98 KB Custom License https://www.printfriendly.com/
Print to PDF 14618 128.0 3.5 3 years ago (Aug 6, 2022) Feeds, News & Blogging, Appearance, Tabs Easily print any page to PDF with just one click! 0.1.1 29.85 KB Mozilla Public License 2.0 https://mybrowseraddon.com/print-to-pdf.html
Privacy Badger 1779997 2863.0 4.8 2 months ago (May 30, 2025) Privacy & Security Automatically learns to block hidden trackers. Made by the leading digital rights nonprofit EFF to stop companies from spying on you. 2025.5.30 1.91 MB GNU General Public License v3.0 only https://privacybadger.org/
Privacy Possum 47778 417.0 4.4 6 years ago (Jul 18, 2019) Privacy & Security, Other Privacy Possum monkey wrenches common commercial tracking methods by reducing and falsifying the data gathered by tracking companies. 2019.7.18 278.05 KB GNU General Public License v3.0 only https://github.com/cowlicks/privacypossum 773.0
Privacy Redirect 1727 110.0 4.5 4 years ago (Jul 25, 2021) Privacy & Security Redirects Twitter, YouTube, Instagram and more to privacy friendly alternatives. 1.1.49 63.62 KB GNU General Public License v3.0 only https://github.com/SimonBrazell/privacy-redirect 2089.0
Privacy Settings 1389 69.0 4.3 a year ago (Apr 25, 2024) Privacy & Security, Search Tools Alter Firefox's built-in privacy settings easily with a toolbar panel. 0.3.8resigned1 84.13 KB Mozilla Public License 2.0 http://add0n.com/privacy-settings.html
Privacy | Protect Your Payments 7937 87.0 3.6 a month ago (Jun 12, 2025) Privacy & Security, Shopping Privacy's Firefox add-on allows you to generate a new virtual card number with 1-click on any checkout page. Keep your payment info safe from data breaches, shady merchants, and sneaky subscription billing. 2.4.15 2.34 MB All Rights Reserved https://privacy.com
Private Grammar Checker - Harper 535 14.0 5.0 5 days ago (Jul 15, 2025) Language Support, Social & Communication A private grammar checker for 21st Century English 0.51.0 2.87 MB Apache License 2.0 https://writewithharper.com
ProToots 18 4.0 4.0 a year ago (May 23, 2024) Social & Communication puts pronouns next to usernames on mastodon 1.2.3 624.71 KB Open Software License (OSL) v3.0 https://github.com/ItsVipra/ProToots 24.0
Profile Switcher for Firefox 6810 199.0 3.5 3 years ago (May 8, 2022) Privacy & Security, Tabs Create, manage and switch between browser profiles seamlessly. 1.3.1 2.78 MB GNU General Public License v3.0 only https://github.com/null-dev/firefox-profile-switcher 398.0
Progressive Web Apps for Firefox 13576 274.0 4.5 5 months ago (Feb 15, 2025) Other A tool to install, manage and use Progressive Web Apps (PWAs) in Mozilla Firefox 2.14.1 167.61 KB Mozilla Public License 2.0 https://github.com/filips123/PWAsForFirefox 2649.0
Prometheus Formatter 149 5.0 5.0 7 months ago (Dec 23, 2024) Web Development Makes plain Prometheus/OpenMetrics endpoints easier to read. 3.2.0 16.27 KB MIT License https://github.com/fhemberger/prometheus-formatter 129.0
Promnesia 40 10.0 5.0 a year ago (Jun 5, 2024) Feeds, News & Blogging, Search Tools, Bookmarks, Social & Communication Enhancement of your browsing history 1.3.1 439.26 KB MIT License https://github.com/karlicoss/promnesia 1818.0
PronounDB 1706 44.0 4.2 9 months ago (Oct 27, 2024) Social & Communication PronounDB is a browser extension that helps people know each other's pronouns easily and instantly. Whether hanging out on a Twitch chat, or on any of the supported platforms, PronounDB will make your life easier. 0.14.6 135.2 KB BSD 2-Clause "Simplified" License https://pronoundb.org
Proton Pass 90593 2296.0 4.7 2 months ago (Jun 5, 2025) Privacy & Security Free and unlimited password manager to keep your login credentials safe and manage them directly in your browser. 1.31.6 7.59 MB GNU General Public License v3.0 only https://proton.me
Proton VPN: Fast & Secure 58521 475.0 3.4 3 months ago (Apr 8, 2025) Privacy & Security Secure your internet and protect your online privacy in one click. 1.2.7 2.32 MB GNU General Public License v3.0 only https://protonvpn.com/
ProtonDB for Steam 3636 68.0 4.9 2 months ago (May 9, 2025) Games & Entertainment Shows ratings from protondb.com on Steam 2.3.0 22.54 KB GNU Lesser General Public License v3.0 only https://github.com/tryton-vanmeer/ProtonDB-for-Steam#protondb-for-steam 185.0
Proxy SwitchyOmega 23049 616.0 4.5 7 years ago (Jan 28, 2018) Web Development, Privacy & Security, Appearance Manage and switch between multiple proxies quickly & easily. 2.5.10 928.49 KB GNU General Public License v3.0 only https://github.com/FelisCatus/SwitchyOmega 22274.0
Purple Ads Blocker for Twitch 6559 75.0 3.2 7 months ago (Jan 2, 2025) Web Development, Privacy & Security Purple AdBlock is a adblock for Twitch.tv 2.6.7 23.13 KB GNU General Public License v3.0 only
Pushbullet 18082 269.0 3.6 2 years ago (Mar 25, 2023) Download Management, Social & Communication Pushbullet enables you to see your calls and texts on your computer and easily send links and files from your computer to phone. 366 546.57 KB Mozilla Public License 2.0 https://www.pushbullet.com
Pywalfox 1324 15.0 4.5 2 years ago (Jan 24, 2023) Appearance Dynamic theming of Firefox using your Pywal colors 2.0.11 41.52 KB Mozilla Public License 2.0 https://github.com/frewacom/Pywalfox 742.0
QR Code 6209 50.0 4.8 4 years ago (Oct 9, 2021) Social & Communication, Tabs Adds a button to the address bar to get the current url as a qr code 1.3 16.63 KB GNU General Public License v3.0 only
Quality of RWTH 126 5.0 4.8 4 months ago (Mar 30, 2025) Other Makes RWTH websites more enjoyable 1.12.3 75.37 KB MIT License
Qwant - Search engine 52934 158.0 4.5 a year ago (Aug 30, 2024) Search Tools With this extension, Qwant becomes your default search engine on your browser! 🚀 7.1.2 16.75 KB GNU General Public License v3.0 only https://www.qwant.com/
Qwant - Search engine & tracker blocker 78619 645.0 4.3 9 months ago (Oct 23, 2024) Privacy & Security, Search Tools The Qwant extension sets qwant.com as your default search engine and blocks trackers. 8.1.0 360.5 KB GNU General Public License v3.0 only https://help.qwant.com/en/docs/qwant-search/add-qwant-on-desktop/on-firefox/
RECAP 2355 19.0 4.7 a month ago (Jun 16, 2025) Other Turning PACER Around since 2009 to make it better and cheaper. 2.8.5 1.48 MB GNU General Public License v3.0 only https://free.law/recap/
RSF Censorship Detector 7 1.0 5.0 2 years ago (Aug 3, 2023) Feeds, News & Blogging, Privacy & Security Find access to blocked websites 2.0.0 29.13 KB GNU General Public License v3.0 only https://github.com/RSF-RWB/collateralfreedom 37.0
RSSHub Radar 1953 42.0 4.7 2 years ago (Nov 19, 2023) Feeds, News & Blogging, Search Tools Easily find and subscribe to RSS and RSSHub. 1.10.3 676.99 KB MIT License https://github.com/DIYgod/RSSHub-Radar 6468.0
RSSPreview 2818 121.0 4.7 3 months ago (Apr 22, 2025) Feeds, News & Blogging Preview RSS feeds in-browser 3.33.1 63.87 KB MIT License https://github.com/aureliendavid/rsspreview 118.0
RYS — Remove YouTube Suggestions 4188 154.0 4.8 8 days ago (Jul 13, 2025) Feeds, News & Blogging, Appearance Stop the YouTube rabbit hole. Customize YouTube's user interface to be less engaging. 4.3.63 333.38 KB Mozilla Public License 2.0 https://lawrencehook.com/rys/
Rabattcorner: Cashback & Gutscheine 831 5.0 4.8 4 months ago (Mar 17, 2025) Alerts & Updates, Shopping Mit der Rabattcorner Cashback-Erinnerung kannst du beim Online-Shoppen bei über 800 Partnern Geld zurück bekommen. 2.1.6.12 2.28 MB Mozilla Public License 2.0 https://www.rabattcorner.ch
Raindrop.io 31094 288.0 4.3 24 days ago (Jun 27, 2025) Feeds, News & Blogging, Bookmarks, Tabs All-in-one bookmark manager 6.6.84 1.09 MB Mozilla Public License 2.0 https://raindrop.io
Rakuten Button Canada: Get Cash Back for Shopping 12311 21.0 3.6 3 years ago (May 23, 2022) Shopping Always forgetting Cash Back? Let us help. Shop like you normally would at your favourite stores and we’ll alert you when Cash Back is available. Trust us, you’ll never forget Cash Back again! 7.8.1 4.76 MB Mozilla Public License, version 1.1 https://www.rakuten.ca/
React Developer Tools 186992 373.0 4.6 5 months ago (Feb 7, 2025) Web Development React Developer Tools is a tool that allows you to inspect a React tree, including the component hierarchy, props, state, and more. To get started, just open the Firefox devtools and switch to the "⚛️ Components" or "⚛️ Profiler" tab. 6.1.1 1.59 MB MIT License https://github.com/facebook/react 237452.0
Read Aloud: A Text to Speech Voice Reader 194897 1165.0 3.8 20 days ago (Jun 30, 2025) Feeds, News & Blogging, Appearance, Language Support Read out loud the current web-page article with one click. Supports 40+ languages. 1.80.0 565.3 KB GNU General Public License v3.0 only
Readeck 1004 21.0 4.9 2 months ago (May 19, 2025) Feeds, News & Blogging, Bookmarks Readeck companion browser extension 2.4.5 62.65 KB GNU Lesser General Public License v3.0 only https://readeck.org/en/
Recoll WE 16 5.0 4.2 4 years ago (Mar 26, 2021) Search Tools, Other Enqueue visited WEB pages for storage and indexing by Recoll. 2.1 27.65 KB GNU General Public License v2.0 only https://www.lesbonscomptes.com/recoll/
Reddit Comment Collapser 985 47.0 4.9 a year ago (Apr 25, 2024) Appearance, Social & Communication, Other A more elegant solution for collapsing reddit comment trees. Reddit Comment Collapser is free and open source. Contributions welcome - https://github.com/tom-james-watson/reddit-comment-collapser 5.1.2resigned1 182.4 KB MIT License https://github.com/tom-james-watson/reddit-comment-collapser 48.0
Reddit Enhancement Suite 308522 597.0 4.8 6 months ago (Jan 22, 2025) Feeds, News & Blogging, Appearance, Social & Communication Reddit Enhancement Suite (RES) is a suite of tools to enhance your Reddit browsing experience. 5.24.8 4.24 MB GNU General Public License v3.0 only https://redditenhancementsuite.com/
Redirect AMP to HTML 5457 113.0 4.6 5 years ago (Apr 9, 2020) Privacy & Security Automatically redirects AMP pages to the regular web page variant. 2.1.0 22.32 KB MIT License https://www.daniel.priv.no/web-extensions/amp2html.html
Redirector 16639 350.0 4.6 5 years ago (Mar 26, 2020) Other Automatically redirects to user-defined urls on certain pages 3.5.3 51.72 KB MIT License http://einaregilsson.com/redirector/
Redux DevTools 50587 136.0 4.7 4 months ago (Apr 3, 2025) Web Development, Appearance DevTools for Redux with actions history, undo and replay. 3.2.10 1.22 MB MIT License https://github.com/reduxjs/redux-devtools 14220.0
Refined GitHub 9276 180.0 4.9 5 days ago (Jul 16, 2025) Web Development, Appearance Simplifies the GitHub interface and adds many useful features. 25.7.16 585.94 KB MIT License https://github.com/refined-github/refined-github 28791.0
Refined Saved Replies 2 2 years ago (Nov 16, 2023) Web Development Adds a repository's .github/replies.yml to GitHub's Saved Replies feature. 0.5 382.59 KB MIT License
Remove YouTube End Cards & End Screen Videos 2709 20.0 4.9 3 years ago (Jan 2, 2023) Appearance, Photos, Music & Videos, Games & Entertainment Remove YouTube end cards and end screen recommendation videowall. 1.0.4 19.79 KB All Rights Reserved https://unhook.app
Return YouTube Dislike 879627 4651.0 4.7 9 months ago (Oct 17, 2024) Social & Communication, Other Returns ability to see dislike statistics on youtube 3.0.0.18 127.96 KB GNU General Public License v3.0 only
Ruffle - Flash Emulator 66568 190.0 4.6 6 days ago (Jul 15, 2025) Web Development, Photos, Music & Videos, Games & Entertainment Putting Flash back on the web. Designed to be easy to use, this extension will seamlessly enable you to play flash content, with no extra configuration required! 0.2.0.25196 4.97 MB MIT License https://ruffle.rs/
Rust Search Extension 923 29.0 4.8 5 months ago (Feb 12, 2025) Search Tools, Language Support The ultimate search extension for Rust Search std docs, crates, builtin attributes, official books, and error codes, etc in your address bar instantly. https://rust.extension.sh 2.0.2 1.6 MB Mozilla Public License 2.0 https://rust.extension.sh
Saka Key 862 129.0 4.3 5 years ago (May 31, 2020) Appearance, Other, Tabs A keyboard interface to the web 1.26.3 696.16 KB MIT License https://github.com/lusakasa/saka-key 864.0
Save Page WE 20521 448.0 4.4 2 years ago (Mar 31, 2023) Other Save a complete web page (as currently displayed) as a single HTML file that can be opened in any browser. Save a single page, multiple selected pages or a list of page URLs. Automate saving from command line. 28.11 101.09 KB GNU General Public License v2.0 only
ScrollAnywhere 12440 459.0 4.6 3 years ago (Apr 19, 2022) Search Tools, Appearance Scroll page without touching scroll-bar! Press Middle (Right / Left) mouse button anywhere on the page to scroll just like with scrollbar. Features also: - "grab and drag" scrolling - customizable scrollbars! - the Momentum auto-scroll 9.2 421.52 KB All Rights Reserved https://fastaddons.com/
Search Engines Helper 2935 78.0 4.6 2 years ago (Sep 3, 2023) Search Tools, Bookmarks, Other Add a custom search engine and export/import all the search urls and icon urls for all search engines added to Firefox. 3.5.0 75.04 KB MIT License https://github.com/soufianesakhi/firefox-search-engines-helper 114.0
Search by Image 402400 1726.0 4.6 2 months ago (May 27, 2025) Search Tools, Photos, Music & Videos, Shopping A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye. 8.2.3 834.94 KB GNU General Public License v3.0 only https://github.com/dessant/search-by-image#readme 2762.0
Semantic Scholar 297 3.0 5.0 5 years ago (Oct 29, 2020) Search Tools Quickly view research papers and search results on Semantic Scholar, the free, AI-powered academic search engine from the Allen Institute for AI (AI2). 0.3.9 151.89 KB All Rights Reserved https://www.semanticscholar.org
Session Sync 7226 235.0 4.5 6 years ago (Jul 12, 2019) Bookmarks, Other, Tabs Save sessions as bookmarks and access them across devices. Advanced Session Manager: edit, save, change, restore. It can also be your best Bookmark Manager 3.1.12 1.37 MB Mozilla Public License 2.0 https://github.com/ReDEnergy/SessionSync 304.0
Shaarli 261 7.0 4.4 2 months ago (May 25, 2025) Feeds, News & Blogging, Social & Communication Cette extension remplace le bookmarklet officiel et intègre un bouton « Shaarli » dans la barre des modules. 2.2.0 117.16 KB GNU General Public License v3.0 only
Shinigami Eyes 42719 1145.0 2.5 10 months ago (Oct 1, 2024) Social & Communication Highlights transphobic/anti-LGBT and trans-friendly subreddits/facebook pages/groups with different colors. Supports Reddit, Twitter, Facebook, Tumblr, Medium, YouTube, Wikipedia, search engine results and all sites with Disqus comments. 1.0.37 2.95 MB MIT License https://shinigami-eyes.github.io/
Shiori 170 8.0 4.3 4 months ago (Mar 30, 2025) Feeds, News & Blogging, Bookmarks, Other Web extension for Shiori, a simple bookmark manager. Source code: https://github.com/go-shiori/shiori, https://github.com/go-shiori/shiori-web-ext 1.7.4.0 1.66 MB MIT License https://github.com/go-shiori/shiori-web-ext 499.0
Side View 15999 338.0 4.1 9 months ago (Oct 16, 2024) Tabs Open a mobile view of a page in the sidebar 0.6.6956 193.04 KB Mozilla Public License 2.0 https://github.com/mozilla/side-view/ 210.0
Sidebar Tabs 654 36.0 4.4 2 months ago (May 27, 2025) Appearance, Tabs Emulate tabs in sidebar and display tabs vertically. In addition, group tabs and collapse / expand them. 16.0.4 489.13 KB Mozilla Public License 2.0 https://github.com/asamuzaK/sidebarTabs 62.0
Sidebery 63414 991.0 4.7 5 months ago (Feb 22, 2025) Bookmarks, Tabs Vertical tabs tree and bookmarks in sidebar with advanced containers configuration, grouping and many other features. 5.3.3 576.05 KB MIT License https://github.com/mbnuqw/sidebery 4142.0
Silk - Privacy Pass Client 17111 716.0 3.2 a year ago (Apr 2, 2024) Privacy & Security Client support for Privacy Pass anonymous authorization protocol. 4.0.2 98.29 KB BSD 2-Clause "Simplified" License https://github.com/cloudflare/pp-browser-extension 347.0
Simple Dark 1 3 years ago (Dec 10, 2022) Other A simple dark high contrast theme with a tone of cyan. 3.0 7.46 KB Creative Commons Attribution 3.0
Simple Tab Groups 84773 1803.0 4.0 3 months ago (Apr 7, 2025) Appearance, Other, Tabs Create, modify, and quickly change tab groups 5.3.2 834.43 KB Mozilla Public License 2.0 https://github.com/drive4ik/simple-tab-groups 1305.0
Simple Translate 284192 2067.0 4.6 a year ago (May 13, 2024) Language Support Quickly translate selected or typed text on web pages. Supports Google Translate and DeepL API. 3.0.0 424.74 KB Mozilla Public License 2.0 https://simple-translate.sienori.com
SimpleLogin: Open-source Email Protection 12470 191.0 4.8 4 months ago (Mar 20, 2025) Privacy & Security Create a different email for each website to hide your real email. Guard your inbox against spams, phishing. Protect your privacy. 3.0.7 2.08 MB MIT License https://simplelogin.io
Simplify Gmail 944 138.0 4.7 10 hours ago (Jul 20, 2025) Appearance, Social & Communication Your time and attention matter -- Simplify Gmail enhances Gmail to boost productivity, strengthen privacy, and reduce stress. From the co-founder of Google Inbox. 3.2.10 9.64 MB All Rights Reserved https://simpl.fyi
SingleFile 77661 973.0 4.8 4 months ago (Mar 31, 2025) Download Management, Privacy & Security Save an entire web page—including images and styling—as a single HTML file. 1.22.81 1.06 MB AGPL v3 https://www.getsinglefile.com
Skip Redirect 12233 185.0 4.5 3 years ago (Mar 11, 2022) Other Some web pages use intermediary pages before redirecting to a final page. This add-on tries to extract the final url from the intermediary url and goes there straight away if successful. 2.3.6 81.31 KB MIT License
Smart Referer 3120 75.0 4.1 6 years ago (Dec 18, 2019) Privacy & Security Improve your privacy by limiting Referer information leak! Please note that this extension has been largely superseded by better browser defaults for websites using HTTPS (almost all) and is not maintained anymore. 0.2.15 158.81 KB WTFPL https://gitlab.com/smart-referer/smart-referer 52.0
SmartProxy 5529 260.0 4.5 a month ago (Jun 9, 2025) Web Development, Privacy & Security, Social & Communication SmartProxy is a smart automatic proxy switcher that will automatically enable/disable proxy for the sites you visit, based on customizable rules. 1.7.1 1.3 MB GNU General Public License v3.0 only https://github.com/salarcode/SmartProxy 2417.0
Snooze Tabs 2762 104.0 4.0 a year ago (Apr 25, 2024) Appearance, Bookmarks, Other, Tabs Snooze Tabs help you focus your attention online, whether you want to remove distractions for now or save something for later. Hit the snooze icon to dismiss tabs you don’t want now, and set an alarm to bring them back when you need them. 1.1.2resigned1 873.13 KB Mozilla Public License 2.0 https://github.com/bwinton/SnoozeTabs#readme 168.0
Snowflake 12278 244.0 4.8 4 months ago (Mar 19, 2025) Privacy & Security, Social & Communication Help people in censored countries access the Internet without restrictions. Once you install and enable the extension, wait for the snowflake icon to turn green, this means a censored user is connecting through your extension to access the Internet! 0.9.3 234.63 KB BSD 2-Clause "Simplified" License https://snowflake.torproject.org/
Solarized Dark 2 3 years ago (Mar 20, 2022) Solid Solarized Dark theme, using blue backgrounds with yellow highlights 3.0 7.96 KB Creative Commons Attribution 3.0
Solarized-Light 257 20.0 4.9 6 years ago (May 13, 2019) Solid Uh-oh! Looks like somebody left Firefox out in the sun. Credit to Ethan Schoonover for the color scheme. http://ethanschoonover.com/solarized 2.0 85.46 KB All Rights Reserved
Sonarr/Radarr/Lidarr search 450 7.0 4.7 4 months ago (Mar 11, 2025) Search Tools Exposes a context menu that enables direct searching for tv shows, movies or artists in Sonarr, Radarr & Lidarr. See description for a list of integrated sites. 2.11.0.0 1.66 MB Mozilla Public License 2.0 https://github.com/trossr32/sonarr-radarr-lidarr-autosearch-browser-extension 148.0
Sourcegraph for Firefox 617 7.0 5.0 2 years ago (Apr 14, 2023) Web Development, Search Tools, Other Adds code intelligence to GitHub, GitLab, Bitbucket Server, and Phabricator: hovers, definitions, references. Supports 20+ languages. 23.4.14.1343 6.52 MB Apache License, Version 2.0
Spanish (Spain) Dictionary 108333 178.0 4.4 7 months ago (Jan 2, 2025) Spanish/Spain Dictionary 3.2.9 265.39 KB Mozilla Public License 2.0 http://www.proyectonave.es/productos/extensiones/diccionario-es-ES
SponsorBlock - Skip Sponsorships on YouTube 630006 2883.0 4.8 5 days ago (Jul 16, 2025) Appearance, Games & Entertainment Easily skip YouTube video sponsors. When you visit a YouTube video, the extension will check the database for reported sponsors and automatically skip known sponsors. You can also report sponsors in videos. Other browsers: https://sponsor.ajay.app 5.13.3 1.74 MB GNU Lesser General Public License v3.0 only https://sponsor.ajay.app
Spoof Timezone 1529 65.0 3.4 12 days ago (Jul 9, 2025) Privacy & Security This extension alters browser timezone to a random or user-defined value. 0.4.6 184.87 KB Mozilla Public License 2.0 https://add0n.com/spoof-timezone.html
Startpage 202663 729.0 4.4 6 months ago (Jan 8, 2025) Privacy & Security, Search Tools This extension protects users from being tracked while allowing them to search the web in complete private mode. 2.0.3 22.09 KB GNU General Public License v3.0 only
Startup Bookmarks 63 6.0 4.0 12 days ago (Jul 8, 2025) Bookmarks, Tabs Open a set of bookmarks as tabs on browser startup by simply selecting a bookmark folder which contains them 1.7.17 18.03 KB BSD 2-Clause "Simplified" License https://github.com/igorlogius/webextensions/tree/main/startup-bookmarks 4.0
StatsHunters 1864 12.0 4.8 17 days ago (Jul 4, 2025) Other Show tiles on Strava, Komoot, Brouter, RWGPS, Garmin and Mapy.cz route builder 3.0.0 37.03 KB Mozilla Public License 2.0 https://www.statshunters.com
SteamDB 73658 571.0 4.8 19 days ago (Jul 2, 2025) Shopping, Games & Entertainment Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats. 4.22 373 KB BSD 2-Clause "Simplified" License https://steamdb.info/
StreetPass for Mastodon 1112 52.0 5.0 a year ago (Feb 21, 2024) Social & Communication Find your people on Mastodon 2024.1 201.49 KB MIT License https://streetpass.social/
Stylebot 9838 105.0 4.7 3 years ago (Jul 24, 2022) Web Development, Appearance Change the appearance of the web instantly 3.1.3 3.48 MB MIT License https://stylebot.dev/
Stylus 127939 1168.0 4.7 4 months ago (Mar 10, 2025) Web Development, Appearance Redesign your favorite websites with Stylus, an actively developed and community driven userstyles manager. Easily install custom themes from popular online repositories, or create, edit, and manage your own personalized CSS stylesheets. 2.3.14 1.04 MB GNU General Public License v3.0 only https://add0n.com/stylus.html
Substitoot 200 9.0 5.0 a year ago (Feb 14, 2024) Feeds, News & Blogging, Social & Communication A transparent toot fetcher for Mastodon. Loads missing replies to boosted toots in your feed directly from the source server. Make sure you set your home instance(s) in preferences to start using this! 0.7.2.0 96.3 KB MIT License https://github.com/virtulis/substitoot 55.0
Surfingkeys 1900 95.0 4.9 8 months ago (Nov 25, 2024) Search Tools, Other, Tabs Rich shortcuts for you to click links / switch tabs / scroll pages or DIVs / capture full page or DIV etc, let you use the browser like vim, plus an embed vim editor. https://github.com/brookhong/Surfingkeys 1.17.5 699.47 KB MIT License https://github.com/brookhong/Surfingkeys 5759.0
Swedish Dictionary 18359 42.0 4.8 5 years ago (Apr 1, 2020) Swedish spell-check dictionary. 1.21 732.41 KB GNU Lesser General Public License v3.0 only
Swift Selection Search 10709 681.0 4.8 3 months ago (Apr 13, 2025) Search Tools, Other Swiftly access your search engines in a popup panel when you select text in a webpage. Context menu also included! 3.49.0 305.16 KB MIT License https://github.com/CanisLupus/swift-selection-search 238.0
TETR.IO PLUS 747 11.0 4.6 4 months ago (Mar 9, 2025) Games & Entertainment Custom skins, background music, sound effects, (animated) backgrounds, input display, and touch control support for TETR.IO. 0.27.7 3.18 MB MIT License
TST Active Tab on Scroll Bar 449 10.0 4.0 a year ago (Mar 26, 2024) Appearance, Tabs Provides a marker to indicate active tab position in Tree Style Tab sidebar. 1.3.2 25.18 KB Mozilla Public License 2.0
TST Bookmarks Subpanel 1058 42.0 4.7 a year ago (Feb 4, 2024) Appearance, Bookmarks Provides a bookmarks subpanel for Tree Style Tab's sidebar. 2.0 87.53 KB Mozilla Public License 2.0
TST Indent Line 943 16.0 4.9 7 months ago (Dec 9, 2024) Tabs Provides indent line for Tree Style Tab sidebar. 1.3.3 26.57 KB Mozilla Public License 2.0
TST Lock Tree Collapsed 228 5.0 4.2 a year ago (Apr 2, 2024) Appearance, Tabs Provides ability to lock trees in Tree Style Tab as collapsed. 1.4.3 33.16 KB Mozilla Public License 2.0 https://github.com/piroor/tst-lock-tree-collapsed 5.0
TST More Tree Commands 1678 25.0 4.8 a year ago (Mar 26, 2024) Tabs Provides extra tree manipulation commands for Tree Style Tab. 1.5.1 26.89 KB Mozilla Public License 2.0
TST Tab Search 677 29.0 4.2 2 years ago (Jul 28, 2023) Search Tools, Tabs Search for or filter the Tabs in TST's sidebar, and quickly find and activate them. 0.0.7 183.89 KB Mozilla Public License 2.0 https://github.com/NiklasGollenstede/tst-search#readme 42.0
TWP - Translate Web Pages 597959 3615.0 4.8 4 months ago (Mar 16, 2025) Language Support Translate your page in real time using Google, Bing or Yandex. It is not necessary to open new tabs. 10.1.1.1 499.53 KB Mozilla Public License 2.0
Tab Center Reborn 2087 138.0 4.8 4 months ago (Apr 2, 2025) Tabs Simple and powerful vertical tab bar 3.0.1 76.88 KB Mozilla Public License 2.0 https://codeberg.org/ariasuni
Tab Counter Plus 2027 54.0 4.7 4 years ago (Feb 6, 2021) Other, Tabs Shows the number of tabs in each window. Efficient and customizable. 3.4 21.37 KB Apache License 2.0 https://github.com/Loirooriol/tab-counter-plus 47.0
Tab ReTitle 3059 92.0 4.2 6 years ago (Dec 14, 2019) Appearance, Tabs Change tab titles easily! + Persists through sessions + Domain level re-titling + Regex replacements and much more! 1.5.2 179.2 KB MIT License
Tab Reloader (page auto refresh) 77745 463.0 4.0 2 months ago (May 12, 2025) Web Development, Tabs An easy-to-use tab reloader with custom reloading time settings for individual tabs 0.6.5 606.37 KB Mozilla Public License 2.0 https://webextension.org/listing/tab-reloader.html
Tab Session Manager 147160 1158.0 4.2 4 months ago (Mar 28, 2025) Appearance, Tabs Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync. 7.1.1 787.6 KB Mozilla Public License 2.0 https://tab-session-manager.sienori.com/
Tab Stash 39199 545.0 4.6 3 months ago (Apr 26, 2025) Bookmarks, Tabs Easily save and organize batches of tabs as bookmarks. Clear your tabs, clear your mind. Only for Firefox. 3.3 332.02 KB Mozilla Public License 2.0 https://josh-berry.github.io/tab-stash/
Tab Unloader for Tree Style Tab 999 24.0 4.8 a year ago (Jul 26, 2024) Appearance, Other, Tabs Tab unload options for Tree Style Tab. 6.17 154.43 KB GNU General Public License v3.0 only https://github.com/Lej77/tab-unloader-for-tree-style-tab 19.0
Tab Wrangler 1494 44.0 4.4 5 months ago (Feb 16, 2025) Other, Tabs Automatically closes inactive tabs and makes it easy to get them back 7.8.0 461.2 KB MIT License https://github.com/tabwrangler/tabwrangler/ 538.0
Tabliss - New Tab 75346 2393.0 4.6 3 years ago (Apr 25, 2022) Appearance, Photos, Music & Videos, Other, Tabs A beautiful New Tab page with many customisable backgrounds and widgets that does not require any permissions. 2.6.0 211.67 KB GNU General Public License v3.0 only https://tabliss.io
Tampermonkey 722587 5176.0 4.7 7 months ago (Dec 15, 2024) Web Development, Appearance, Other Tampermonkey is the world's most popular userscript manager. 5.3.3 1.58 MB All Rights Reserved https://tampermonkey.net
Temporary Containers 12002 283.0 4.7 4 years ago (Feb 8, 2021) Privacy & Security, Tabs Open tabs, websites, and links in automatically managed disposable containers which isolate the data websites store (cookies, storage, and more) from each other, enhancing your privacy and security while you browse. 1.9.2 817.7 KB MIT License https://github.com/stoically/temporary-containers 872.0
Terms of Service; Didn’t Read 13398 174.0 4.6 4 months ago (Mar 30, 2025) Privacy & Security, Search Tools “I have read and agree to the Terms” is the biggest lie on the web. We aim to fix that. Get informed instantly about websites' terms & privacy policies, with ratings and summaries from the www.tosdr.org initiative. 5.1.1 248.07 KB GNU Affero General Public License, version 3.0 http://tosdr.org
Text Contrast for Dark Themes 639 132.0 4.7 6 years ago (Dec 4, 2019) Appearance, Other Fixes low-contrast text when using a dark desktop theme. 2.1.6 28.04 KB MIT License
Textern 211 33.0 5.0 2 years ago (Jun 9, 2023) Web Development, Social & Communication, Other Edit text in your favourite external editor! 0.8 15.83 KB GNU General Public License v3.0 only https://github.com/jlebon/textern 144.0
The Camelizer - Price Tracker 75618 221.0 3.8 2 years ago (Feb 24, 2023) Alerts & Updates, Shopping Add price history charts and price watch features to Firefox when viewing product pages on Amazon. Use it to make informed purchasing decisions and to receive price drop alerts via email, Twitter, or RSS feed. 3.0.15 680.8 KB Custom License https://camelcamelcamel.com/camelizer
The Stream Detector 14772 150.0 4.4 2 years ago (Jul 9, 2023) Download Management, Photos, Music & Videos, Other This addon provides an easy way to keep track of manifests and subtitles used by various streaming protocols. Also allows for detecting custom file types and downloading media files. 2.11.7 48.99 KB Mozilla Public License 2.0
Theater Mode for YouTube™ (YouTube Wide Screen) 3055 33.0 4.3 2 days ago (Jul 19, 2025) Photos, Music & Videos Force YouTube to open in its player in the theater mode 0.2.5 50.74 KB Mozilla Public License 2.0 https://webextension.org/listing/youtube-tools.html?theater
To DeepL translation 15585 81.0 4.2 5 months ago (Feb 21, 2025) Language Support Right-click on a section of text and click on "To DeepL" to translate it to your language. Default language is selected in extension preferences. 0.9.3 11.65 KB MIT License https://github.com/xpmn/firefox-to-deepl/ 91.0
To Google Translate 778179 3620.0 4.1 4 years ago (Jun 19, 2021) Feeds, News & Blogging, Appearance, Language Support Right-click a section of text and click the Translate icon next to it to text translate or listen to it in your language. 4.2.0 110.27 KB Mozilla Public License 2.0 https://github.com/itsecurityco/to-google-translate 399.0
Toggl Track: Productivity & Time Tracker 11743 152.0 3.9 5 months ago (Feb 18, 2025) Other Puts a timer into any web tool and allows quick real time productivity tracking with all the data stored on your Toggl Track account. Time tracking has never been easier! 4.7.5 8.77 MB MIT License https://toggl.com/track/
Tokyo Night V2 32 3.0 5.0 4 years ago (Nov 24, 2021) Firefox A Tokyo Night theme, based on enkia's VS Code theme. There are other Tokyo Night themes in the addons store, but none of them actually had the right colors, so I decided to make my own. 1.0 7.7 KB Creative Commons Attribution-NonCommercial-Share Alike 3.0
Tomato Clock 31309 412.0 4.5 4 years ago (Sep 4, 2021) Alerts & Updates, Other Tomato Clock is a simple browser extension that helps with online time management. 6.0.2 1.43 MB GNU General Public License v3.0 only https://github.com/samueljun/tomato-clock 341.0
Toolkit for YNAB 4526 38.0 4.7 3 months ago (Apr 13, 2025) Appearance, Shopping UI customizations and tweaks for the web version of YNAB. 3.17.0 1.73 MB MIT License https://github.com/toolkit-for-ynab/toolkit-for-ynab 1484.0
Torrent Control 8218 144.0 4.4 8 months ago (Nov 17, 2024) Download Management Send torrent and magnet links to your Bittorrent client's web interface. Supports BiglyBT, Cloud Torrent, Deluge, Flood, ruTorrent, Synology Download Station, Tixati, Transmission, tTorrent, µTorrent, Vuze and qBittorrent. 0.2.43 50.12 KB MIT License https://github.com/Mika-/torrent-control 200.0
Tournesol Extension 1774 45.0 4.9 3 months ago (Apr 17, 2025) Feeds, News & Blogging, Search Tools See Tournesol recommendations on YouTube, and easily contribute to the project. 3.8.2 138.76 KB GNU Lesser General Public License v3.0 only https://tournesol.app/
Tracking & Ad Removal on Facebook 1434 91.0 4.3 a year ago (Jun 18, 2024) Privacy & Security, Social & Communication Removes Ads and the user interaction tracking on Facebook™. Modified elements can optionally have a custom CSS style applied to them so that cleaned items can be more easily identified. 1.13.0 83.31 KB GNU General Public License v3.0 only https://github.com/mgziminsky/FacebookTrackingRemoval 125.0
Tranquility Reader 42144 288.0 4.6 a year ago (Jun 9, 2024) Feeds, News & Blogging, Appearance Tranquility Reader improves the readability of web articles by removing unnecessary elements like ads, images, social sharing widgets, and other distracting fluff. 3.0.26 93.27 KB GNU General Public License v3.0 only https://github.com/ushnisha/tranquility-reader-webextensions 125.0
Transparent standalone images 834 50.0 4.6 a year ago (Apr 25, 2024) Web Development, Photos, Music & Videos, Other This add-on renders standalone images on a transparent background, so you can see the image in all its glory! 2.2resigned1 23.39 KB Mozilla Public License 2.0
Tree Style Tab 186228 2213.0 4.5 10 days ago (Jul 10, 2025) Appearance, Tabs Show tabs like a tree. 4.2.5 1.14 MB Custom License http://piro.sakura.ne.jp/xul/_treestyletab.html.en
Tree Style Tab Mouse Wheel 796 57.0 4.7 4 months ago (Mar 24, 2025) Other, Tabs This add-on requires Tree Style Tab. It extends Tree Style Tab to allow tab changing by mouse wheel scrolling and reloading a tab when double clicking it. 1.5.10 24.77 KB Mozilla Public License 2.0 https://github.com/joshuacant/
Tridactyl 4809 491.0 4.9 7 months ago (Dec 15, 2024) Appearance, Other Vim, but in your browser. Replace Firefox's control mechanism with one modelled on Vim. This addon is very usable, but is in an early stage of development. We intend to implement the majority of Vimperator's features. 1.24.2 3.19 MB Apache v2 https://tridactyl.xyz
Tube Archivist Companion 750 7.0 4.9 4 months ago (Mar 12, 2025) Download Management, Bookmarks Interact with your selfhosted TA server. 0.4.1 50.98 KB GNU General Public License v3.0 only https://github.com/tubearchivist/browser-extension 185.0
TunnelBear VPN 22663 277.0 3.5 2 years ago (Jul 13, 2023) Privacy & Security TunnelBear is a simple app that helps you browse the Internet privately and securely. TunnelBear changes your IP and protects your browsing data from online threats, letting you access your favorite websites and apps worldwide. 3.6.1 770.73 KB All Rights Reserved https://tunnelbear.com
Tweaks for YouTube 4799 151.0 4.6 a month ago (Jun 25, 2025) Appearance, Photos, Music & Videos Seek, navigate chapters, control volume, speed, and more with mouse and keyboard shortcuts. Adjust player controls, progress bar, subtitles, process audio, show playlist duration, take video snapshot, set initial volume, speed, resolution, and more. 3.81.0 674.97 KB All Rights Reserved
Twitch Auto Points 3220 8.0 4.8 4 years ago (May 30, 2021) Social & Communication, Games & Entertainment Automatic twitch channel points collection 1.2.5 36.47 KB GNU General Public License v3.0 only https://github.com/Spring3/twitch-auto-points 16.0
Twiter X Video Downloader 357 14.0 4.1 a month ago (Jun 24, 2025) Download Management, Photos, Music & Videos Download videos from X (Twitter) 15.0 702.73 KB Mozilla Public License 2.0
Ukrainian dictionary 32918 85.0 4.8 3 months ago (Apr 25, 2025) Ukrainian (uk-UA) spellchecking dictionary 6.6.1 1.46 MB Mozilla Public License 2.0 https://github.com/brown-uk/dict_uk 588.0
UnTrap for YouTube 17147 113.0 4.4 7 months ago (Dec 10, 2024) Appearance, Photos, Music & Videos Summarize YouTube videos with AI and Hide Distractions: shorts, ads, comments, related, suggestions, and more. 8.3.1 1.56 MB All Rights Reserved http://untrap.app
Undo Close Tab 43716 569.0 4.7 a month ago (Jun 14, 2025) Appearance, Tabs Allows you to restore the tab you just closed with a single click—plus it can offer a list of recently closed tabs within a convenient context menu. 8.1.0 48.17 KB GNU General Public License v3.0 only https://github.com/M-Reimer/undoclosetab 103.0
Unhook: Remove YouTube Recommended Videos Comments 105690 949.0 4.7 a year ago (Apr 12, 2024) Appearance, Photos, Music & Videos Hide YouTube related videos, comments, video suggestions wall, homepage recommendations, trending tab, and other distractions. 1.6.7 44.26 KB All Rights Reserved https://unhook.app
Unpaywall 68366 241.0 4.3 4 years ago (Jul 28, 2021) Feeds, News & Blogging, Search Tools, Social & Communication Get free text of research papers as you browse, using Unpaywall's index of ten million legal, open-access articles. 3.98 675.66 KB MIT License https://unpaywall.org/products/extension
Unwanted Twitch 5804 105.0 4.1 4 months ago (Mar 16, 2025) Appearance, Games & Entertainment Hide unwanted streams, games, categories, channels and tags on: twitch.tv 25.3.16 54.11 KB MIT License https://github.com/kwaschny/unwanted-twitch 113.0
Uppity 789 10.0 4.0 a year ago (Apr 25, 2024) Other Navigate up one level (directory). It will remove an in-page anchor, the querystring, the file, and the last directory in that order, whichever is first found... 2.2resigned1 27.45 KB MIT License https://github.com/arantius/uppity 14.0
User-Agent Switcher and Manager 88241 751.0 4.1 2 months ago (May 21, 2025) Web Development, Privacy & Security Spoof websites trying to gather information about your web navigation—like your browser type and operating system—to deliver distinct content you may not want. 0.6.5.1 828 KB Mozilla Public License 2.0 http://add0n.com/useragent-switcher.html
Userchrome Toggle 690 6.0 5.0 3 years ago (Feb 21, 2022) Appearance This extension allows you to toggle userchrome.css styles on-the-fly with buttons and hotkeys. 1.2 18.52 KB MIT License
Userchrome Toggle Extended 1063 6.0 4.5 a year ago (Aug 22, 2024) Web Development, Appearance This extension allows you to toggle userchrome.css styles on-the-fly with buttons and hotkeys. You'll be able to switch up to six styles 2.0.1 22.86 KB Mozilla Public License 2.0
Varia Integrator 544 6.0 4.3 2 days ago (Jul 19, 2025) Download Management Route all downloads to Varia if it's running. 1.3 31.97 KB Mozilla Public License 2.0 https://giantpinkrobots.github.io/varia/
Video DownloadHelper 1786099 39308.0 4.3 2 months ago (May 28, 2025) Download Management Download videos from the web. Easy, smart, no tracking. 9.5.0.2 1.54 MB Custom License http://www.downloadhelper.net/
Video Resumer 2757 73.0 4.5 a year ago (Apr 25, 2024) Bookmarks, Photos, Music & Videos Automatically resumes YouTube videos from where you played them last. Without this extension, for example, when you click through YouTube videos, back and forth, they always start from the beginning. 1.2.4resigned1 2.44 MB Custom License
Video Speed Controller 98077 770.0 4.6 4 years ago (Apr 6, 2021) Appearance, Photos, Music & Videos, Social & Communication Speed up, slow down, advance and rewind any HTML5 video with quick shortcuts. 0.6.3.3 64.62 KB MIT License https://github.com/codebicycle/videospeed 446.0
View Image 24146 487.0 4.1 a year ago (Jun 25, 2024) Appearance, Other, Tabs Re-implements the google image, "View Image" button. 5.2.0 77.29 KB MIT License https://github.com/bijij/ViewImage 801.0
Vim Vixen 1004 266.0 4.7 4 years ago (Sep 26, 2021) Appearance, Other Accelerates your web browsing with Vim power!! 1.2.3 1.13 MB MIT License https://github.com/ueokande/vim-vixen 2095.0
Vimium 41786 553.0 4.8 20 days ago (Jun 30, 2025) Search Tools The Hacker's Browser. Vimium provides keyboard shortcuts for navigation and control in the spirit of Vim. 2.3 194 KB MIT License https://github.com/philc/vimium 25083.0
Vimium C - All by Keyboard 6635 154.0 4.8 3 months ago (Apr 14, 2025) Appearance, Tabs A keyboard shortcut tool for keyboard-based page navigation and browser tab operations with an advanced omnibar and global shortcuts 2.12.3 395.43 KB MIT License https://github.com/gdh1995/vimium-c 3930.0
Violentmonkey 114751 724.0 4.7 4 months ago (Mar 15, 2025) Web Development, Other Userscript support for browsers, open source. 2.31.0 637.58 KB MIT License https://violentmonkey.github.io/
Volume Control for Bandcamp Player 4830 51.0 5.0 2 years ago (Mar 15, 2023) Photos, Music & Videos, Other It's a volume control for Bandcamp audio player. The extension adds another slider (somewhere around the one that controls the track progress) to control the volume. 1.0.3 24.01 KB Custom License https://github.com/butterknight/bandcamp-volume-control 15.0
Vue.js devtools 71721 614.0 4.7 a month ago (Jun 6, 2025) Web Development, Appearance DevTools extension for debugging Vue.js applications. 7.7.7 3.61 MB MIT License https://devtools.vuejs.org
WAVE Accessibility Extension 23468 51.0 4.7 a year ago (Sep 4, 2024) Web Development, Appearance Evaluate web accessibility within the Firefox browser. When activated, the WAVE extension injects icons and indicators into your page to give feedback about accessibility and to facilitate manual evaluation. 3.2.7.1 338.27 KB Custom License
WakaTime 849 3.0 4.3 2 months ago (May 12, 2025) Tabs Automatic time tracking for Firefox. 4.1.0 4.96 MB Mozilla Public License 2.0 https://wakatime.com
Wallabagger 3062 76.0 4.4 a year ago (Mar 21, 2024) Feeds, News & Blogging This wallabag v2 extension has the ability to edit title and tags and set starred, archived, or delete states. You can add a page from the icon or through the right click menu on a link or on a blank page spot. 1.17.0 550.71 KB MIT License https://github.com/wallabag/wallabagger 423.0
Wappalyzer 127080 538.0 4.4 9 days ago (Jul 11, 2025) Web Development, Search Tools Identify technologies on websites 6.10.84 29.37 MB All Rights Reserved https://www.wappalyzer.com
Watch2Gether 55014 75.0 4.2 2 months ago (May 12, 2025) Photos, Music & Videos, Social & Communication, Games & Entertainment With Watch2Gether you can watch videos together with your friends. Enhance your Watch2Gether experience with our official browser extension. 10.8 434.13 KB All Rights Reserved https://w2g.tv
Watchmarker for Youtube 2740 137.0 4.7 5 months ago (Feb 6, 2025) Photos, Music & Videos Automatically mark videos on Youtube that you have already watched. 4.7.1 421.83 KB GNU General Public License v3.0 only http://sniklaus.com/
Wayback Machine 35235 352.0 4.1 3 years ago (Dec 22, 2022) Feeds, News & Blogging, Search Tools, Other Welcome to the Official Internet Archive Wayback Machine Browser Extension! Go back in time to see how a website has changed through the history of the Web. Save websites, view missing 404 Not Found pages, or read archived books & papers. 3.2 1.31 MB GNU General Public License v3.0 only https://archive.org
Web Archives 64429 314.0 4.7 7 months ago (Dec 13, 2024) Feeds, News & Blogging, Search Tools View archived and cached versions of web pages on various search engines, such as the Wayback Machine and Archive․is. 7.0.1 556.46 KB GNU General Public License v3.0 only https://github.com/dessant/web-archives#readme 1360.0
Web Developer 76399 491.0 4.3 a year ago (Jun 19, 2024) Web Development, Other The Web Developer extension adds various web developer tools to the browser. 3.0.1 569.78 KB GNU Lesser General Public License v3.0 only http://chrispederick.com/work/web-developer/firefox/
Web Scrobbler 19734 253.0 4.6 10 months ago (Sep 14, 2024) Photos, Music & Videos Scrobble music all around the web! 3.10.0 754.52 KB MIT License https://web-scrobbler.com
Web Search Navigator 952 50.0 5.0 2 years ago (May 29, 2023) Search Tools, Other Boost your searching productivity with Web Search Navigator! Adds keyboard shortcuts to navigate within Google Search results. 0.5.2 208.08 KB MIT License https://github.com/infokiller/web-search-navigator 939.0
Web eID 51644 22.0 3.7 2 years ago (Mar 6, 2023) Privacy & Security Use your electronic identification card for secure authentication and digital signing. 2.2.1 105.71 KB MIT License
WebXR API Emulator 3023 6.0 5.0 4 years ago (Jan 29, 2021) Web Development Emulate WebXR devices on your browser 0.3.3 770.06 KB Mozilla Public License 2.0 https://github.com/MozillaReality/WebXR-emulator-extension 473.0
Who Wrote That? 672 13.0 4.4 2 months ago (May 16, 2025) Search Tools Explore authorship and revision information visually and directly in Wikipedia articles. Powered by WikiWho. 0.22.3.0 151.84 KB MIT License https://www.mediawiki.org/wiki/WWT
Wide GitHub 423 20.0 4.8 2 months ago (May 28, 2025) Web Development, Appearance Makes GitHub wide on Mozilla Firefox. Supports GitHub, private Gists, GitHub Enterprise, and custom domains (TLDs). 3.3.0 68.67 KB GNU General Public License v3.0 only https://github.com/fabiocchetti/wide-github/ 19.0
Wikipedia Vector Skin 1940 23.0 4.8 2 years ago (Jan 25, 2023) Other This extension restores the old Wikipedia Layout and Design by appending "?useskin=vector" to Wikipedia URLs. 1.3 8.69 KB Mozilla Public License 2.0
Wikiwand - knowledge, with context 12200 667.0 3.9 a year ago (Aug 23, 2024) Feeds, News & Blogging, Search Tools, Appearance AI-driven wiki aggregator created to enhance user experience on Wikipedia by streamlining knowledge consumption 10.0.1 16.8 KB All Rights Reserved http://www.wikiwand.com
Windscribe - Free VPN and Ad Blocker 81218 3977.0 4.5 9 days ago (Jul 11, 2025) Web Development, Privacy & Security Windscribe helps you circumvent censorship, block ads, beacons and trackers on websites you use every day. 3.4.13.3 3.75 MB GNU General Public License v3.0 only https://windscribe.com
XKit Rewritten 44159 157.0 4.8 6 days ago (Jul 15, 2025) Feeds, News & Blogging The enhancement suite for Tumblr's new web interface 1.0.12 2.17 MB GNU General Public License v3.0 only https://github.com/AprilSylph/XKit-Rewritten/wiki 326.0
Xdebug Helper for Firefox 17388 69.0 4.1 2 years ago (Jul 19, 2023) Web Development, Other This extension is very useful for PHP developers that are using PHP tools with Xdebug support like PHPStorm, Eclipse with PDT, Netbeans and MacGDBp or any other Xdebug compatible profiling tool like KCacheGrind, WinCacheGrind or Webgrind. 1.0.10 352.42 KB MIT License https://github.com/BrianGilbert/xdebug-helper-for-firefox 103.0
Yang! - Yet Another Bangs anywhere extension 196 15.0 4.9 7 days ago (Jul 14, 2025) Search Tools An open-source, lightweight extension that allows using DuckDuckGo-like bangs anywhere. 1.0.5 445.32 KB GNU General Public License v3.0 only https://github.com/dmlls/yang 56.0
Yomitan 18946 67.0 4.9 a month ago (Jun 9, 2025) Appearance, Language Support Powerful and versatile pop-up dictionary for language learning used by 100,000+ language learners. 25.6.3.0 14.75 MB GNU General Public License v3.0 only https://github.com/themoeway/yomitan 1905.0
YouTube Alternative Switch 13 4.0 4.0 a year ago (Mar 28, 2024) Privacy & Security, Games & Entertainment Quickly switch videos between YouTube, Piped, Invidious and Chat Replay. 2.1.1 15.12 KB MIT License https://github.com/willswats/youtube-alternative-switch 1.0
YouTube High Definition 154205 1358.0 3.8 a year ago (Aug 29, 2024) Photos, Music & Videos, Other, Games & Entertainment YouTube High Definition is a powerful tool that automatically plays all YouTube videos in HD, changes video player size, offers auto-stop and mute, and much more. 118.0.9 211.71 KB GNU Lesser General Public License v3.0 only http://barisderin.com/
YouTube No Translation 13062 104.0 4.9 5 days ago (Jul 16, 2025) Language Support, Social & Communication, Games & Entertainment Keeps titles, descriptions and audio tracks in their original language on YouTube. 2.10.0 119.31 KB GNU Affero General Public License v3.0 only
YouTube NonStop 137060 572.0 4.1 2 years ago (Oct 29, 2023) Photos, Music & Videos, Games & Entertainment Tired of getting that "Video paused. Continue watching?" confirmation dialog? This extension autoclicks it, so you can listen to your favorite music uninterrupted. Working on YouTube and YouTube Music! 0.9.2 82.42 KB MIT License https://github.com/lawfx/YoutubeNonStop 408.0
YouTube Redux 8138 252.0 4.2 a month ago (Jun 22, 2025) Appearance, Social & Communication Replicate old YouTube look and features within the modern layout! 3.8.4 309.21 KB MIT License
YouTube Screenshot Button 14959 77.0 4.5 10 days ago (Jul 10, 2025) Download Management, Appearance, Photos, Music & Videos Take screenshots from YouTube Videos & YouTube Shorts. The addon adds screenshot button & also enables Shift+A shortcut. 4.4.0 22.57 KB Mozilla Public License 2.0 https://github.com/gurumukhi/youtube-screenshot 50.0
YourOnlineChoices Plugin 316 15.0 4.3 a year ago (Apr 25, 2024) Privacy & Security Helps preserve your choices for online behavioural advertising from companies participating in the European OBA Self-Regulatory Programme. 0.1.2resigned1 26.55 KB Mozilla Public License 2.0
Youtube-shorts block 55755 259.0 4.6 3 months ago (May 5, 2025) Photos, Music & Videos, Games & Entertainment Play the Youtube shorts video as if it were a normal video. and hide "shorts"tab and videos (optional). 1.5.3 39.97 KB MIT License
ZeroOmega--Proxy SwitchyOmega V3 10741 51.0 4.9 22 days ago (Jun 29, 2025) Privacy & Security Manage and switch between multiple proxies quickly & easily. 3.4.1 1.95 MB GNU General Public License v3.0 only
Zoom Image 12304 173.0 4.2 4 years ago (Jan 30, 2021) Photos, Music & Videos As though the mouse wheel rotate by the right click on the images, you can do the images extenting / reducing / rotating and so on. It can be expanded regardless of design. Also you can drag zoomed images. 2.7.1 68.63 KB Mozilla Public License 2.0 http://crossblade.her.jp/addon/ff_zoomimage/index.php
Zoom Page WE 21971 504.0 3.8 2 years ago (Apr 16, 2023) Appearance Zoom web pages (either per-site or per-tab) using full-page zoom, text-only zoom and minimum font size. Fit-to-width zooming can be applied to pages automatically. Fit-to-window scaling can be applied to small images. 19.13 105.64 KB GNU General Public License v2.0 only
Zoom Redirector 1449 10.0 5.0 5 years ago (Aug 5, 2020) Privacy & Security Zoom Redirector transparently redirects any meeting links to use Zoom's browser based web client. 1.0.2 49.46 KB MIT License https://github.com/arkadiyt/zoom-redirector 581.0
[TST] Fade Old Tabs 237 7.0 3.9 a year ago (Sep 4, 2024) Appearance, Tabs This TST addon fades away tabs that hasn't been visited for a while 1.0.2 17.45 KB Mozilla Public License 2.0
[Unofficial] Saladict - Pop-up Dictionary 3292 17.0 4.8 2 years ago (Dec 22, 2023) Language Support Saladict is an all-in-one professional pop-up dictionary and page translator which supports multiple search modes, page translations, new word notebook and PDF selection searching. This distribution is UNOFFICIAL. Remove it if you don't trust it. 7.20.0 3.75 MB MIT License https://g.imayx.top/UNOFFICIAL_saladict/
a11y.css accessibility checker 191 1.0 5.0 7 months ago (Dec 10, 2024) Web Development, Other a11y.css provides warnings about possible risks and mistakes that exist in HTML code through a style sheet. This extension also provides several accessibility-related utilities. see https://github.com/ffoodd/a11y.css/tree/webextension for details 2.1.0 678.6 KB MIT License https://ffoodd.github.io/a11y.css/
addy.io (AnonAddy) - Anonymous Email Forwarding 906 42.0 5.0 14 days ago (Jul 7, 2025) Privacy & Security Open-source Anonymous Email Forwarding. Quickly and easily view, search, manage and create new aliases in just a few clicks using the addy.io browser extension. 2.3.7 196.31 KB MIT License https://addy.io
automaticDark - Time-Based Theme Changer 13045 197.0 4.4 2 years ago (Feb 23, 2023) Appearance Automatically change Firefox's theme based on the time. 1.4.1 197.43 KB MIT License https://github.com/skhzhang/time-based-themes/ 139.0
cliget 3394 90.0 4.7 5 years ago (Jan 11, 2021) Web Development, Download Management, Other Download login-protected files from the command line using curl, wget or aria2. 2.1.0 87.63 KB Mozilla Public License 2.0 https://github.com/zaidka/cliget 372.0
cookies.txt 27087 73.0 4.7 4 months ago (Mar 9, 2025) Web Development, Privacy & Security Exports all cookies to a Netscape HTTP Cookie File, as used by curl, wget, and youtube-dl, among others. 0.8 83.32 KB GNU General Public License v3.0 only
enhanced-h264ify 7982 101.0 4.4 a year ago (May 30, 2024) Photos, Music & Videos, Other Choose what video codec YouTube should play for you 2.2.1 24.97 KB MIT License https://github.com/alextrv/enhanced-h264ify 316.0
ff2mpv 821 42.0 4.7 8 months ago (Nov 26, 2024) Download Management, Photos, Music & Videos, Other Tries to play links in mpv. Press the toolbar button to play the current URL in mpv. Otherwise, right click on a URL and use the context item to play an arbitrary URL. You'll need the native client here: github.com/woodruffw/ff2mpv 6.0.0 309.84 KB MIT License https://github.com/woodruffw/ff2mpv 577.0
floccus 7358 196.0 4.4 7 days ago (Jul 14, 2025) Privacy & Security, Bookmarks, Tabs Sync your bookmarks and tabs across browsers via Nextcloud, any WebDAV service, any Git service, via a local file, via Google Drive. 5.5.6 6.32 MB Mozilla Public License 2.0 https://floccus.org
h264ify 49860 220.0 4.4 6 years ago (Sep 9, 2019) Other Makes YouTube stream H.264 videos instead of VP8/VP9 videos 1.1.0 34.95 KB MIT License
kristofferhagen-nord-theme 3 8.0 4.9 6 years ago (Jul 25, 2019) Firefox Firefox theme inspired by https://www.nordtheme.com/ 2.0 9.34 KB Creative Commons Attribution 3.0 https://github.com/kristofferhagen/firefox-nord-theme 6.0
lesspass 805 81.0 4.6 3 months ago (Apr 7, 2025) Privacy & Security Use LessPass add-on to generate complex passwords and log in automatically to all your sites 11.0.10 300.72 KB GNU General Public License v3.0 only https://github.com/lesspass/lesspass 5877.0
linkding extension 1396 21.0 4.8 4 months ago (Mar 6, 2025) Bookmarks Companion extension for the linkding bookmark manager 1.14.0 221.07 KB MIT License https://github.com/sissbruecker/linkding-extension/ 228.0
linkding injector 181 11.0 5.0 2 months ago (May 11, 2025) Search Tools, Bookmarks Injects search results from the linkding bookmark service into search pages like google and duckduckgo 1.3.5 249.68 KB MIT License https://github.com/Fivefold/linkding-injector 280.0
maya Angel #FFECF6 Solid Pastel Pink Light Theme 1 3 years ago (May 10, 2022) Solid Soft pastel pink light theme with a few darker Evil maya accents. Fairly bright but should be comfortable for most users. 1.0 7.67 KB Creative Commons Attribution 3.0
maya Evil #41283C Solid Purple-Pink Dark Theme 6 2.0 5.0 3 years ago (May 10, 2022) Solid Deep purple pink solid theme. Hopefully comfortable to use and fairly easy on the eyes. 1.0 8.25 KB Creative Commons Attribution 3.0
movie-web remastered extension 2655 6.0 3.8 a year ago (May 13, 2024) Games & Entertainment Enhance your streaming experience with just one click • Greatly increase the list of sources available. • Start using the website without any friction. • Enjoy other supported websites or self-hosts. 1.1.4 1.31 MB MIT License https://e-z.bio/pnda
mtab 577 28.0 4.7 a month ago (Jun 17, 2025) Search Tools, Appearance a simple configurable new tab extension 1.9.0 13.13 MB MIT License https://github.com/maxhu08/mtab 495.0
musescore-downloader 4386 56.0 4.7 4 years ago (Aug 1, 2021) Photos, Music & Videos download sheet music from musescore.com for free, no login or Musescore Pro required | 免登录、免 Musescore Pro,免费下载 musescore.com 上的曲谱 0.26.0 203.05 KB MIT License https://github.com/Xmader/musescore-downloader#readme 2743.0
ng-inspect 187 10.0 3.2 a year ago (Apr 25, 2024) Web Development Inspect the angular scope in the developper tools inspector 1.1resigned1 9.42 KB MIT License https://github.com/christophehurpeau/ng-inspect 4.0
nightTab 4262 194.0 4.9 4 years ago (Oct 2, 2021) Appearance, Tabs A neutral new tab page accented with a chosen colour. Customise the layout, style, background and bookmarks in nightTab. 7.3.0 968.61 KB GNU General Public License v3.0 only https://github.com/zombieFox/nightTab 1928.0
nos2x-fox 713 9.0 4.6 6 months ago (Jan 26, 2025) Privacy & Security Nostr Signer Extension (for Firefox) 1.17.0 1.02 MB Public domain https://github.com/diegogurpegui/nos2x-firefox 92.0
pakku: bilibili danmaku filter [Language: Chinese] 1753 347.0 4.9 5 months ago (Mar 5, 2025) Photos, Music & Videos, Games & Entertainment 瞬间过滤B站(bilibili.com)刷屏的相似弹幕,还你清爽的弹幕视频体验。 *a tweak for a Chinese website. Please ignore this add-on if you are not a user of bilibili.com.* 2025.3.1 327.33 KB GNU General Public License v3.0 only http://s.xmcp.ltd/pakkujs/?src=amo_homepage
polkadot{.js} extension 8266 178.0 4.4 6 days ago (Jul 15, 2025) Web Development, Privacy & Security Manage your Polkadot accounts outside of dapps. Injects the accounts and allows signs transactions for a specific account. 0.61.3 2.15 MB Apache-2.0 https://github.com/polkadot-js/extension 998.0
uBO-Scope 713 87.0 4.7 a year ago (Apr 25, 2024) Privacy & Security A tool to measure your 3rd-party exposure score for web sites you visit. 0.1.13resigned1 163.21 KB GNU General Public License v3.0 only https://github.com/gorhill/uBO-Scope 266.0
uBlacklist 40953 293.0 4.4 a month ago (Jun 18, 2025) Search Tools Blocks sites you specify from appearing in Google search results 9.0.0 2.08 MB MIT License https://ublacklist.github.io/
uBlock Origin 9473866 20770.0 4.8 11 days ago (Jul 10, 2025) Privacy & Security Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory. 1.65.0 3.94 MB GNU General Public License v3.0 only https://github.com/gorhill/uBlock#ublock-origin 56511.0
uMatrix 17123 749.0 4.8 4 years ago (Jul 20, 2021) Privacy & Security Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc. 1.4.4 1.39 MB GNU General Public License v3.0 only https://github.com/gorhill/uMatrix 4633.0
webhint 2578 39.0 4.6 a year ago (Aug 29, 2024) Web Development Check for best practices and common errors with your site's accessibility, speed, security and more. 2.4.17 768.13 KB Apache 2.0 https://webhint.io
wiki.gg Redirect 6823 28.0 4.9 17 days ago (Jul 4, 2025) Search Tools, Games & Entertainment Redirects all requests from wikis that have moved to wiki.gg from their former host. 1.8.0 203.06 KB MIT License https://wiki.gg
xBrowserSync 3419 90.0 4.0 5 years ago (Apr 9, 2020) Privacy & Security, Bookmarks Browser syncing as it should be: secure, anonymous and free! Sync bookmarks across your browsers and devices, no sign up required. 1.5.2 1.88 MB GNU General Public License v3.0 only https://www.xbrowsersync.org/
yank 22 3.0 5.0 5 months ago (Feb 18, 2025) Web Development Yank URL and title of current tab, format to a chosen markup language, and copy to clipboard 2.1.0 13 KB MIT License https://github.com/roosta/yank#readme 12.0
ytcFilter 1494 26.0 4.9 9 months ago (Oct 7, 2024) Appearance, Social & Communication The most powerful and intuitive YouTube chat filter extension. 3.0.5 1.32 MB MIT License
{find+} 2323 72.0 4.0 4 years ago (Aug 15, 2021) Web Development, Search Tools, Other A find-in-page extension with support for regular expressions. 2.2.1 118.58 KB GNU General Public License v3.0 only https://github.com/brandon1024/find/ 453.0
划词翻译 42204 328.0 4.3 a year ago (Aug 10, 2024) Language Support 一站式划词 / 截图 / 网页全文 / 音视频 AI 翻译扩展,支持谷歌、DeepL、ChatGPT、百度等 9 个国内外主流翻译服务,均可用于全文翻译。能在 PDF 里使用。支持辅助键、快捷键、悬浮取词。 10.14.1 4.71 MB All Rights Reserved https://hcfy.ai
知乎外链直达 179 5.0 4.6 a year ago (Apr 25, 2024) Privacy & Security 移除知乎外部链接重定向,加速上网、避免访问追踪。 1.1.2resigned1 15 KB MIT License https://github.com/paicha/zhihu-undirect 31.0