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 2025-07-07.

Name Number Users Number Reviews Average Rating Last Update Categories Summary Version Size License Homepage Repository Stars Count
'Improve YouTube!' 🎧 (For YouTube & Video) 78925 740.0 4.4 19 days 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/ 3833.0
10ten Japanese Reader (Rikaichamp) 22930 253.0 4.7 3 months ago (Apr 3, 2025) Language Support, Social & Communication Quickly translate Japanese by hovering over words. Formerly released as Rikaichamp. 1.24.0 17.53 MB GNU General Public License v3.0 only https://10ten.life
1Password: Password Manager 362456 1729.0 3.9 12 days ago (Jun 24, 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. 8.10.82.29 17.5 MB All Rights Reserved https://1password.com
2FAS Auth - Two factor authentication 7303 85.0 3.9 2 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 6662 39.0 5.0 5 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 1369.0
About Sync 2849 17.0 4.7 4 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 90470 789.0 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 2264 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 418.0
AdBlocker Ultimate 1459748 26558.0 4.8 6 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 52292 596.0 4.6 20 days 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 36006 405.0 4.8 8 days ago (Jun 28, 2025) Appearance, Tabs Changes the color of Firefox theme to match the website’s appearance. 2.6 83.36 KB MIT License https://github.com/easonwong-de/Adaptive-Tab-Bar-Colour 580.0
Add custom search engine 9694 477.0 4.7 3 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 2003 31.0 4.8 a month 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 412 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 49238 168.0 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 60 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 9921 23.0 3.5 a month ago (Jun 4, 2025) Web Development Angular DevTools extends Firefox DevTools adding Angular specific debugging and profiling capabilities. 1.0.33 2.98 MB MIT License https://angular.dev/tools/devtools/
Animalese Typing 6811 59.0 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 27 a month 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 25.0
Annotations Restored for YouTube™ 8218 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 479 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 320.0
Aria2 Download Manager Integration 1922 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 498 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 126 4.0 4.5 8 months ago (Oct 28, 2024) Other Suspending AudioContext instances automatically 1.4 8.15 KB Mozilla Public License 2.0
Augmented Steam 59826 472.0 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 3715 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 175 8.0 4.0 14 days 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 72174 930.0 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 2920 125.0 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 5442 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 101688 1534.0 4.4 a year 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 949 19.0 4.6 a month 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! 452 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 3370 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 145442 1717.0 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 16691 67.0 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 2494 36.0 4.0 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 473286 946.0 4.6 a month 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 37617 79.0 4.8 2 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 2033 24.0 4.1 7 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 570.0
Binnen-I be gone 5971 314.0 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 3947 59.0 3.9 a year 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 829151 8983.0 4.6 2 months ago (May 15, 2025) Privacy & Security At home, at work, or on the go, Bitwarden easily secures all your passwords, passkeys, and sensitive information. 2025.5.0 17.13 MB GNU General Public License v3.0 only https://bitwarden.com
BlockTube 26311 445.0 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 1148.0
Bookmark search plus 2 3105 266.0 4.6 22 days 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 42 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) 196882 111.0 4.6 6 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 202 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/ 429.0
Browserpass 1129 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 938.0
Bulgarian Dictionary 14656 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 4533 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 32904 475.0 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 8576.0
B站空降助手 1152 19.0 4.7 19 days ago (Jun 18, 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。 0.8.5 2.66 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 39251 450.0 4.6 6 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/ 1336.0
Capture & Print 8222 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 3298 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 686 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 471 9.0 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 173.0
Censor Tracker 12555 179.0 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 3228 92.0 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 10600.0
Clear Cache 59524 285.0 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 64.0
ClearURLs 482531 998.0 4.3 5 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 7724 24.0 4.5 11 days ago (Jun 26, 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. 3.30.0 2.54 MB Mozilla Public License 2.0 https://clickandread.inist.fr/
Close Other Windows 143 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 95 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 2881 29.0 5.0 a month 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 1082.0
Conex 799 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 49590 272.0 4.3 20 days 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 8 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 913 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 1682 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 5042 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 152.0
Containerise 1872 127.0 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 439.0
Control Panel for Twitter 41436 422.0 4.7 23 days 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 186630 1499.0 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 1872.0
Cookie Quick Manager 52072 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 3001 70.0 4.3 10 months 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 5018 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 1833 84.0 4.9 3 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 935 49.0 4.8 a month 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 201.0
Copy as Org-Mode 345 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 2329 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 64.0
Custom New Tab Page 1565 86.0 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) 11971 255.0 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 12397 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 35112 1104.0 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 371.0
Dark Mode (WebExtension) 51558 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 1020 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 63.0
Dark Reader 1152436 6504.0 4.5 2 months ago (May 6, 2025) Web Development, Appearance, Other Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing. 4.9.106 790.32 KB MIT License https://darkreader.org/
Dark Scroll 436 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 91051 1971.0 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 4574 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 120236 971.0 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 30399 313.0 4.0 16 days 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 225444 1522.0 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 822 55.0 4.8 22 days ago (Jun 14, 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. 5.7.0 4.5 MB GNU General Public License v2.0 only https://github.com/revir/dictionaries 524.0
Disable Facebook News Feed 1370 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 33444 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 71298 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 1155 34.0 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 97.0
DocsAfterDark - Google Docs Dark Mode 54118 229.0 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 10693 144.0 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 1095.0
DownThemAll! 200617 959.0 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 106475 616.0 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 17240 130.0 3.7 8 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 5600 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 4361 110.0 4.4 13 days ago (Jun 24, 2025) Language Support, Photos, Music & Videos Display dual subtitles on video websites. 2.62.2 35.61 KB All Rights Reserved https://www.dualsub.xyz/en/
DuckDuckGo Search & Tracker Protection 1258891 2326.0 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 3187 73.0 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 🌱 278771 783.0 4.8 13 days 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 196 28.0 4.9 4 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 527.0
Elasticvue 4953 23.0 4.8 15 days 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 572 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 2210.0
Enhancer for Nebula 359 14.0 4.5 a month 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™ 649557 12053.0 4.7 7 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® 23128 714.0 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 11991 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 120.0
Export Tabs URLs 6017 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) 848 48.0 4.5 7 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 952538 4095.0 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 1025.0
Fakespot Fake Amazon Reviews and eBay Sellers 43397 341.0 3.2 24 days 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 35746 199.0 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 5052 92.0 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 519 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 45527 781.0 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 1916 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 790 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 1542.0
FireMonkey 1755 81.0 4.5 5 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 87.0
Firefox Color 112291 1408.0 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 376267 7631.0 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 2901.0
Firefox Relay 214583 2152.0 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 68326 1032.0 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 387 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 103895 1039.0 4.6 7 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 11225 284.0 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/ 229.0
Form History Control 7136 103.0 4.3 2 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 19377 501.0 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 209018 964.0 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 20805 445.0 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 635 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 435 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 1135.0
FrankerFaceZ 96225 113.0 4.4 19 days ago (Jun 17, 2025) Social & Communication, Games & Entertainment The Twitch Enhancement Suite - Get custom emotes and tons of new features you'll never want to go without. 4.77.6.0 6.64 MB All Rights Reserved https://www.frankerfacez.com
Freedom - Website Blocker 2730 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 310502 238.0 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 2992 40.0 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 138891 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 1372 21.0 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 7227 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 3410.0
Gemini in Sidebar 1077 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 326 6.0 4.8 4 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 238731 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 93099 1406.0 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 899.0
GhostText 750 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 3461.0
Ghostery – Privacy Ad Blocker 952741 4630.0 4.3 5 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 396 8.0 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 185 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
Gitako - Github file tree 237 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 2459.0
Gitpod - Always ready to code. 2061 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 669 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 10163 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 413.0
Gopass Bridge 330 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 383110 4524.0 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 662815 3170.0 4.1 2 months ago (May 6, 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. 8.931.0 38.01 MB Custom License http://grammarly.com
Granted: access multiple AWS accounts at once 3630 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 172160 1267.0 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 1356 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 2557 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 6157.0
Header Editor 11552 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 16050 184.0 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 93.0
HistoryBlock 2012 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 3750 18.0 4.8 7 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) 10425 72.0 3.9 12 days 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/ 1619.0
Hulu Ad Blocker 1222 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
I don't care about cookies 270335 1840.0 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 93347 393.0 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 3870.0
I2P In Private Browsing 217 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 69.0
IPFS Companion 3513 73.0 4.8 4 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 2135.0
IPvFoo 6489 38.0 4.8 22 days 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 639.0
Image Search Options 39515 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 58646 875.0 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 84232 322.0 4.6 25 days 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 11826 289.0 4.2 4 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 252 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 60085 191.0 4.9 16 days 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 389 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 12300 111.0 4.5 8 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 11 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 473 43.0 4.4 20 days 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 2310 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 13120 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 633 25.0 4.9 3 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 719 5.0 4.8 4 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 1596 15.0 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 3935.0
Kagi Privacy Pass 695 8.0 4.9 19 days 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 18259 81.0 4.7 5 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 1491 16.0 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 397 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 116904 695.0 4.3 15 days ago (Jun 22, 2025) Privacy & Security Official browser plugin for the KeePassXC password manager (https://keepassxc.org). 1.9.9 963.1 KB GNU General Public License v3.0 only https://keepassxc.org/
Keepa.com - Amazon Price Tracker 246203 589.0 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 59303 881.0 4.2 a month 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) 2221 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) 173285 31.0 4.4 3 days ago (Jul 4, 2025) Firefox Language Pack for Dansk (da) – Danish 141.0.20250704.121049 421.31 KB Mozilla Public License 2.0
Language: Deutsch (German) 1093345 1292.0 4.1 3 days ago (Jul 4, 2025) Firefox Language Pack for Deutsch (de) – German 141.0.20250704.121049 442.89 KB Mozilla Public License 2.0
Language: Français (French) 997189 1405.0 4.2 3 days ago (Jul 4, 2025) Firefox Language Pack for Français (fr) – French 141.0.20250704.121049 448 KB Mozilla Public License 2.0
Language: Gàidhlig (Scottish Gaelic) 105850 1.0 5.0 3 days ago (Jul 4, 2025) Firefox Language Pack for Gàidhlig (gd) – Scottish Gaelic 141.0.20250704.121049 389.4 KB Mozilla Public License 2.0
Language: Scots 105808 6.0 4.7 3 days ago (Jul 4, 2025) Firefox Language Pack for Scots (sco) 141.0.20250704.121049 314.96 KB Mozilla Public License 2.0
LastPass Password Manager 466486 8901.0 3.7 2 months ago (May 6, 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. 4.141.0 37.47 MB Custom License https://lastpass.com/
LeechBlock NG 99228 1792.0 4.8 a month 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) 74 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 10846 10.0 5.0 9 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 7545 165.0 4.5 8 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 3913 46.0 4.3 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 6457 19.0 4.1 13 days 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 2317 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 16276 172.0 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 580 27.0 4.9 10 months ago (Sep 3, 2024) Other Click with your keyboard. 1.3.3 161.98 KB MIT License https://lydell.github.io/LinkHints
Linkwarden 1685 24.0 4.9 2 months ago (May 3, 2025) Bookmarks, Social & Communication The browser extension for Linkwarden. 1.3.3 198.95 KB MIT License
LocalCDN 17332 234.0 4.8 15 days 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 283 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 637.0
MAL-Sync 11778 207.0 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 2525.0
Mailvelope 26934 123.0 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 9137 103.0 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 3359.0
Material Icons for Github 1142 28.0 5.0 13 days 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 654.0
Matte Black (Red) 20685 1226.0 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 38 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 7532 77.0 4.6 18 days 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 385651 4248.0 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 2504 26.0 4.4 4 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 151 8.0 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 33100 806.0 4.4 a month ago (Jun 5, 2025) Appearance, Tabs Transform your browser into a beautifully designed tab that helps you feel calm, keep focus, and stay energized. 2.23.7 18.57 MB All Rights Reserved https://momentumdash.com
Move unloaded tabs for Tree Style Tab 758 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 3210 119.0 3.7 a month 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™ 3423 137.0 4.3 9 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 1237 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 361 7.0 5.0 5 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 61364 1000.0 4.4 4 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 9558 169.0 4.5 6 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 2751 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 1536 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 7696 154.0 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 3768 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 1786 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 5 3 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 3598 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 256036 2379.0 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 93 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 1642 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 487 25.0 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 1908.0
Notion Web Clipper 39513 198.0 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 48 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 10 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 25091 199.0 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 492 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 3368 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/ 23022.0
Offline QR Code Generator 22532 228.0 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 454.0
Okta Browser Plugin 59874 116.0 3.6 3 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 61555 289.0 4.7 3 months ago (Apr 12, 2025) Feeds, News & Blogging, Appearance, Social & Communication Ensure Reddit always loads the old design 2.0.5 33.33 KB MIT License https://github.com/tom-james-watson/old-reddit-redirect 456.0
Omni - Manage Tabs, Bookmarks, History... 191 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 7523.0
Omnivore 2175 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 44 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 159868 2624.0 4.1 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 193 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 158.0
Open external links in a container 1783 59.0 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 1870 42.0 4.3 5 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 655 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 105.0
Open in VLC media player 23961 253.0 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 433 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 547.0
OverbiteWX 1130 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 19 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 1470 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 1422 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 29273 57.0 4.4 a month ago (Jun 6, 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. 5.2.0 4.97 MB GNU AGPL V3.0 https://www.passbolt.com
PeerTubeify 151 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 1290 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 967 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 19.0
Pinboard 111 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 504 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 69771 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 630 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 4649 62.0 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 92393 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 38070 465.0 4.1 2 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 50503 527.0 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 14750 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 1706755 2844.0 4.8 a month 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 46207 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 1774 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 2084.0
Privacy Settings 1387 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 7782 87.0 3.6 25 days 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 433 11.0 5.0 2 days ago (Jul 4, 2025) Language Support, Social & Communication A private grammar checker for 21st Century English 0.48.0 2.84 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 6819 195.0 3.6 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 395.0
Progressive Web Apps for Firefox 13456 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 2635.0
Prometheus Formatter 157 5.0 5.0 6 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 128.0
Promnesia 39 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 1815.0
PronounDB 1703 44.0 4.2 8 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 89858 2233.0 4.7 a month 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 56868 466.0 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 3517 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 183.0
Proxy SwitchyOmega 23867 614.0 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 22182.0
Purple Ads Blocker for Twitch 6440 74.0 3.2 6 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 17897 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 1284 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 741.0
QR Code 6345 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 129 5.0 4.8 3 months ago (Mar 30, 2025) Other Makes RWTH websites more enjoyable 1.12.3 75.37 KB MIT License
Qwant - Search engine 55096 157.0 4.5 10 months 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 86363 645.0 4.3 8 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 2305 19.0 4.7 20 days 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 6 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 36.0
RSSHub Radar 1966 41.0 4.7 5 months ago (Feb 8, 2025) Feeds, News & Blogging, Search Tools Easily find and subscribe to RSS and RSSHub. 2.1.0 1.37 MB All Rights Reserved https://github.com/DIYgod/RSSHub-Radar 6443.0
RSSPreview 2817 121.0 4.7 2 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 117.0
RYS — Remove YouTube Suggestions 4183 150.0 4.8 7 months ago (Dec 18, 2024) Feeds, News & Blogging, Appearance Stop the YouTube rabbit hole. Customize YouTube's user interface to be less engaging. 4.3.62 333.33 KB Mozilla Public License 2.0 https://lawrencehook.com/rys/
Rabattcorner: Cashback & Gutscheine 899 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 30001 282.0 4.3 10 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 11992 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 186776 370.0 4.6 9 months ago (Sep 26, 2024) 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. 6.0.0 1.58 MB MIT License https://github.com/facebook/react 237024.0
Read Aloud: A Text to Speech Voice Reader 188220 1159.0 3.8 6 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 931 19.0 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 20 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 996 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 299366 596.0 4.8 5 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 5431 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 16515 346.0 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 50806 135.0 4.7 3 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 14216.0
Refined GitHub 9282 178.0 4.9 6 days ago (Jul 1, 2025) Web Development, Appearance Simplifies the GitHub interface and adds many useful features. 25.7.1 585.55 KB MIT License https://github.com/refined-github/refined-github 28674.0
Refined Saved Replies 3 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 2682 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 871225 4622.0 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 65841 189.0 4.6 9 days ago (Jun 28, 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! 0.2.0.25179 5.03 MB MIT License https://ruffle.rs/
Rust Search Extension 950 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 891 129.0 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 20731 447.0 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 12540 456.0 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 2961 76.0 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 112.0
Search by Image 380999 1716.0 4.6 a month 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 2747.0
Semantic Scholar 306 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 7370 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 303.0
Shaarli 274 7.0 4.4 a month 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 42441 1125.0 2.5 9 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 174 7.0 4.1 3 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 496.0
Side View 15954 336.0 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/ 207.0
Sidebar Tabs 683 36.0 4.4 a month 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 64435 986.0 4.7 4 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 4126.0
Silk - Privacy Pass Client 17353 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 345.0
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 86556 1796.0 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 1303.0
Simple Translate 285867 2061.0 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 12710 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 955 138.0 4.7 14 hours ago (Jul 6, 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. 3.2.9 9.64 MB All Rights Reserved https://simpl.fyi
SingleFile 77234 968.0 4.8 3 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 12236 183.0 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 3170 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 5391 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 2378.0
Snooze Tabs 2769 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 12422 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 1 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 255 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 465 6.0 4.8 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 147.0
Sourcegraph for Firefox 629 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 110934 176.0 4.4 6 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 616205 2867.0 4.8 7 days ago (Jun 30, 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 5.13.2 1.61 MB GNU Lesser General Public License v3.0 only https://sponsor.ajay.app
Spoof Timezone 1439 65.0 3.4 5 days ago (Jul 2, 2025) Privacy & Security This extension alters browser timezone to a random or user-defined value. 0.4.5 184.62 KB Mozilla Public License 2.0 https://add0n.com/spoof-timezone.html
Startpage 205158 728.0 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 61 6.0 4.0 5 days ago (Jul 1, 2025) Bookmarks, Tabs Open a set of bookmarks as tabs on browser startup by simply selecting a bookmark folder which contains them 1.7.16 17.73 KB BSD 2-Clause "Simplified" License https://github.com/igorlogius/webextensions/tree/main/startup-bookmarks 1.0
StatsHunters 1922 12.0 4.8 3 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 71067 506.0 4.8 2 months ago (May 15, 2025) Shopping, Games & Entertainment Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats. 4.16 370.04 KB BSD 2-Clause "Simplified" License https://steamdb.info/
StreetPass for Mastodon 1150 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 9903 104.0 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 125088 1165.0 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 197 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 1928 95.0 4.9 7 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 5746.0
Swedish Dictionary 20231 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 10796 679.0 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 704 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 452 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 1077 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 967 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 232 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 1697 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 700 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 594662 3599.0 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 2135 138.0 4.8 3 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 2043 53.0 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 45.0
Tab ReTitle 3070 90.0 4.3 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) 78354 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 142910 1152.0 4.2 3 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 40083 541.0 4.6 2 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 1009 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 1505 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/ 534.0
Tabliss - New Tab 75522 2386.0 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 712849 5161.0 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 12289 282.0 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 867.0
Terms of Service; Didn’t Read 13526 174.0 4.6 3 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 643 132.0 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 214 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 72511 220.0 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 14684 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) 3020 33.0 4.3 6 months ago (Dec 23, 2024) Photos, Music & Videos Force YouTube to open in its player in the theater mode 0.2.4 50.56 KB Mozilla Public License 2.0 https://webextension.org/listing/youtube-tools.html?theater
To DeepL translation 15968 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 793241 3616.0 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 11957 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 29 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 29800 411.0 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 340.0
Toolkit for YNAB 4437 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 1481.0
Torrent Control 8225 142.0 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 199.0
Tournesol Extension 1946 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 1463 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 42766 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 830 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 189915 2207.0 4.5 11 days ago (Jun 25, 2025) Appearance, Tabs Show tabs like a tree. 4.2.4 1.14 MB Custom License http://piro.sakura.ne.jp/xul/_treestyletab.html.en
Tree Style Tab Mouse Wheel 822 56.0 4.7 3 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 4864 489.0 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 731 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 181.0
TunnelBear VPN 22118 276.0 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 4702 146.0 4.6 12 days 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 3097 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 15.0
Twiter X Video Downloader 321 12.0 4.0 12 days 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 33771 85.0 4.8 2 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 587.0
UnTrap for YouTube 16162 110.0 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 43980 567.0 4.7 22 days 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 102.0
Unhook: Remove YouTube Recommended Videos Comments 102823 926.0 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 68177 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 5744 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 806 57.0 4.6 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 88940 747.0 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 708 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 1085 6.0 4.5 10 months 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 538 5.0 4.2 9 months ago (Sep 23, 2024) Download Management Route all downloads to Varia if it's running. 1.2 30.27 KB Mozilla Public License 2.0 https://giantpinkrobots.github.io/varia/
Video DownloadHelper 1795720 39053.0 4.3 a month 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 2742 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 98449 769.0 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 444.0
View Image 24176 486.0 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 1013 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 2098.0
Vimium 42078 551.0 4.8 6 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 25014.0
Vimium C - All by Keyboard 6719 151.0 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 3899.0
Violentmonkey 113064 714.0 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 4765 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 73565 612.0 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 23594 52.0 4.7 10 months 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 2996 75.0 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 420.0
Wappalyzer 126175 538.0 4.4 a month ago (May 22, 2025) Web Development, Search Tools Identify technologies on websites 6.10.83 28.15 MB All Rights Reserved https://www.wappalyzer.com
Watch2Gether 54658 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 2712 136.0 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 35240 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 58221 310.0 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 1353.0
Web Developer 78122 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 19559 252.0 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 959 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 937.0
Web eID 52933 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 3027 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? 684 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 408 20.0 4.8 a month 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 1942 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 12568 664.0 3.9 10 months 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 81165 3967.0 4.5 6 months ago (Jan 13, 2025) Web Development, Privacy & Security Windscribe helps you circumvent censorship, block ads, beacons and trackers on websites you use every day. 3.4.13.2 3.61 MB GNU General Public License v3.0 only https://windscribe.com
XKit Rewritten 43407 157.0 4.8 a month ago (Jun 2, 2025) Feeds, News & Blogging The enhancement suite for Tumblr's new web interface 1.0.11 2.17 MB GNU General Public License v3.0 only https://github.com/AprilSylph/XKit-Rewritten/wiki 326.0
Xdebug Helper for Firefox 17924 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 167 15.0 4.9 a month ago (May 29, 2025) Search Tools An open-source, lightweight extension that allows using DuckDuckGo-like bangs anywhere. 1.0.4 445.31 KB GNU General Public License v3.0 only https://github.com/dmlls/yang 55.0
Yomitan 17979 66.0 4.9 a month ago (Jun 9, 2025) Appearance, Language Support Powerful and versatile pop-up dictionary for language learning used by 60,000+ language learners. 25.6.3.0 14.75 MB GNU General Public License v3.0 only https://github.com/themoeway/yomitan 1869.0
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 136813 1357.0 3.8 10 months 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 8335 88.0 4.9 12 hours ago (Jul 6, 2025) Language Support, Social & Communication, Games & Entertainment Keeps titles, descriptions and audio tracks in their original language on YouTube. 2.6.1 120.8 KB GNU Affero General Public License v3.0 only https://youtube-no-translation.vercel.app/
YouTube NonStop 136254 568.0 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 407.0
YouTube Redux 7951 251.0 4.2 15 days 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 14845 76.0 4.5 a year ago (Aug 20, 2024) Download Management, Appearance, Photos, Music & Videos Take screenshots from YouTube Videos & YouTube Shorts. The addon adds screenshot button & also enables Shift+A shortcut. 4.3.0.61 26.38 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 54744 253.0 4.6 2 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 10151 49.0 4.9 8 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 12376 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 22299 502.0 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 1502 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 245 7.0 3.9 10 months 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 3363 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 201 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 879 41.0 5.0 2 months ago (May 20, 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. 2.3.6 197.23 KB MIT License https://addy.io
automaticDark - Time-Based Theme Changer 13126 196.0 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 3395 90.0 4.7 4 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 371.0
cookies.txt 26391 72.0 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 8015 100.0 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 315.0
ff2mpv 856 42.0 4.7 7 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 574.0
floccus 7400 193.0 4.4 2 months ago (May 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. 5.5.3.1 6.31 MB Mozilla Public License 2.0 https://floccus.org
h264ify 49427 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 822 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 5873.0
linkding extension 1402 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/ 225.0
linkding injector 182 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 273.0
maya Angel #FFECF6 Solid Pastel Pink Light Theme 2 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 7 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 2732 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 584 28.0 4.7 19 days 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 490.0
musescore-downloader 4504 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 193 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 4298 192.0 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 1918.0
nos2x-fox 685 9.0 4.6 5 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 91.0
pakku: bilibili danmaku filter [Language: Chinese] 1782 347.0 4.9 4 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 8345 178.0 4.4 7 days ago (Jun 30, 2025) Web Development, Privacy & Security Manage your Polkadot accounts outside of dapps. Injects the accounts and allows signs transactions for a specific account. 0.61.1 2.14 MB Apache-2.0 https://github.com/polkadot-js/extension 996.0
uBO-Scope 723 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 265.0
uBlacklist 40491 285.0 4.4 19 days 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 8965353 20607.0 4.8 2 months ago (May 13, 2025) Privacy & Security Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory. 1.64.0 3.88 MB GNU General Public License v3.0 only https://github.com/gorhill/uBlock#ublock-origin 54937.0
uMatrix 17116 748.0 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 4629.0
webhint 2630 39.0 4.6 10 months 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
xBrowserSync 3483 91.0 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 20 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
{find+} 2325 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/ 448.0
划词翻译 44754 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 187 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