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 2025-06-23.

Name Number Users Number Reviews Average Rating Last Update Categories Summary Version Size License Homepage Repository Stars Count
'Improve YouTube!' 🎧 (For YouTube & Video) 78846 727.0 4.4 17 days ago (Jun 6, 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) 4.1280 961.69 KB Friendly License https://github.com/code4charity/YouTube-Extension/ 3816.0
10ten Japanese Reader (Rikaichamp) 22779 252.0 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://github.com/birchill/10ten-ja-reader/ 670.0
1Password: Password Manager 364705 1722.0 3.9 11 days ago (Jun 11, 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. 8.10.81.1 18.72 MB All Rights Reserved https://1password.com
2FAS Auth - Two factor authentication 7131 84.0 3.8 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 6733 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 1366.0
About Sync 2883 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 90328 787.0 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 2249 40.0 4.8 3 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 1471294 26506.0 4.8 11 days ago (Jun 12, 2025) Privacy & Security Completely remove ALL ads. No “acceptable” ads or whitelisted advertisers allowed. This free extensions also helps block trackers and malware. 3.8.36 7.6 MB GNU Lesser General Public License v3.0 only https://adblockultimate.net
AdNauseam 49669 595.0 4.6 6 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 36914 393.0 4.8 25 days ago (May 29, 2025) Appearance, Tabs Changes the color of Firefox theme to match the website’s appearance. 2.5 74.63 KB MIT License https://github.com/easonwong-de/Adaptive-Tab-Bar-Colour 575.0
Add custom search engine 9754 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 1972 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 419 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 48584 167.0 4.1 5 months ago (Jan 13, 2025) Web Development, Privacy & Security Re-enable the possibility to use the context menu on sites that overrides it 0.6.3 147.27 KB Mozilla Public License 2.0 https://webextension.org/listing/allow-right-click.html
Anchors reveal 58 5.0 4.6 a year ago (Apr 25, 2024) Web Development, Bookmarks Reveal the anchors in a webpage 1.2resigned1 20.43 KB GNU General Public License v3.0 only http://dascritch.net/post/2014/06/24/Sniffeur-d-ancre
Angular DevTools 9870 23.0 3.5 18 days 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 6733 56.0 4.6 a month 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 23 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 23.0
Annotations Restored for YouTube™ 8224 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 470 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 318.0
Aria2 Download Manager Integration 1971 169.0 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 510 3.0 5.0 3 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 121 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 59409 471.0 4.7 15 days 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 3733 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 116 8.0 4.0 a year ago (Aug 1, 2024) 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 0.8.51 35.74 KB GNU General Public License v2.0 only https://garywill.github.io
Auto Tab Discard 72401 927.0 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 2916 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 5329 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 101698 1533.0 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 936 18.0 4.6 22 days 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! 449 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 3394 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 147557 1716.0 3.3 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 17186 67.0 4.9 8 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 2403 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 474767 942.0 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 37802 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 1871 24.0 4.1 6 days ago (Jun 16, 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. 0.40.4 466.69 KB GNU General Public License v3.0 only https://github.com/stefanw/bibbot 548.0
Binnen-I be gone 5665 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 3857 58.0 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 796310 8959.0 4.6 a month 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 25854 441.0 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 1134.0
Bookmark search plus 2 3139 265.0 4.6 8 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 44 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) 196802 111.0 4.6 3 months ago (Apr 1, 2025) A fork of Mark Tyndall's add-on, based on David Bartlett's British Dictionary R1.19 for Firefox, Thunderbird and SeaMonkey. 4.0.1 473.63 KB GNU Lesser General Public License v3.0 only https://proofingtoolgui.org
BroTab 195 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 1141 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 935.0
Bulgarian Dictionary 14982 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 4458 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 32501 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 8554.0
B站空降助手 1122 17.0 4.7 5 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 249 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 39004 449.0 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/ 1332.0
Capture & Print 8271 45.0 3.8 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 3221 83.0 4.5 a month 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 123.0
Catppuccin Mocha - Mauve 659 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 462 9.0 5.0 a month 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 12557 177.0 4.1 10 months 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 3100 92.0 4.5 10 months 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 10589.0
Clear Cache 59256 285.0 4.4 6 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 438684 993.0 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 7848 23.0 4.5 18 days ago (Jun 5, 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. 3.28.0 2.54 MB Mozilla Public License 2.0 https://clickandread.inist.fr/
Close Other Windows 142 7.0 5.0 a year ago (Apr 25, 2024) Appearance, Tabs Adds a button to close all tabs in other windows which are not pinned 0.2resigned1 9.17 KB MIT License
CommaFeed extension for Firefox 98 4.0 4.5 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 2897 29.0 5.0 24 days 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 1078.0
Conex 782 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 48102 270.0 4.3 9 months ago (Oct 2, 2024) Privacy & Security Automatic handling of GDPR consent forms 1.1.3 96.21 KB MIT License https://consentomatic.au.dk/
Container Colors 10 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 936 43.0 3.9 4 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 1676 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 4974 74.0 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 1897 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 438.0
Control Panel for Twitter 40487 422.0 4.7 9 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 184477 1498.0 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 1865.0
Cookie Quick Manager 51683 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 2983 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 24.0
Copy Selected Links 5037 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 10.0
Copy Selected Tabs to Clipboard 1820 83.0 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 937 49.0 4.8 22 days 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 331 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 2355 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 63.0
Custom New Tab Page 1589 84.0 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) 12440 253.0 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 12671 20.0 4.3 a month 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 35785 1102.0 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 370.0
Dark Mode (WebExtension) 51933 757.0 4.2 8 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 1012 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 1047526 6485.0 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 449 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 92267 1963.0 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 151.0
DarkCloud - Soundcloud Night Mode 4724 41.0 4.9 10 months 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 121428 963.0 4.2 14 days 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 29855 306.0 4.0 9 days ago (Jun 13, 2025) Appearance, Games & Entertainment Crowdsourcing titles and thumbnails to be descriptive and not sensational 2.1.2 3.17 MB GNU Lesser General Public License v3.0 only https://dearrow.ajay.app
Decentraleyes 198409 1520.0 4.8 7 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 828 55.0 4.8 8 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 522.0
Disable Facebook News Feed 1414 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 32962 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 71157 514.0 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 1150 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 96.0
DocsAfterDark - Google Docs Dark Mode 53995 227.0 4.2 5 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 10564 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! 200547 958.0 4.1 8 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 with JDownloader 17128 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 5651 273.0 4.8 6 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 4166 110.0 4.4 8 days ago (Jun 15, 2025) Language Support, Photos, Music & Videos Display dual subtitles on video websites. 2.62.1 35.6 KB All Rights Reserved https://www.dualsub.xyz/en/
DuckDuckGo Search & Tracker Protection 1268844 2321.0 4.3 2 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 3230 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 🌱 278262 781.0 4.8 21 days ago (Jun 2, 2025) Search Tools, Other, Shopping This extension adds Ecosia.org as the default search engine to your browser — it’s completely free! 5.2.7 42.57 KB Mozilla Public License 2.0 http://www.ecosia.org
Edit with Emacs 204 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 526.0
Elasticvue 4980 23.0 4.8 15 hours 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 576 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 2206.0
Enhancer for Nebula 340 13.0 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 44.0
Enhancer for YouTube™ 651350 12033.0 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® 23441 710.0 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 11821 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 136.0
External Application Button (WebExtension) 790 47.0 4.4 5 months ago (Feb 4, 2025) Web Development, Download Management, Appearance, Photos, Music & Videos A highly customizable external application button and context-menu items 0.5.9 166.57 KB Mozilla Public License 2.0 https://webextension.org/listing/external-application-button.html
Facebook Container 965410 4089.0 4.5 3 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 1024.0
Fakespot Fake Amazon Reviews and eBay Sellers 49226 337.0 3.2 10 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 35883 198.0 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 4867 88.0 4.8 17 days 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 524 20.0 4.8 2 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 465.0
Feedbro 45613 779.0 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 1905 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 794 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 1539.0
FireMonkey 1713 80.0 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 85.0
Firefox Color 113379 1405.0 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 376643 7600.0 4.6 a month 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 2892.0
Firefox Relay 203251 2133.0 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 68933 1029.0 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 401 38.0 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 103632 1037.0 4.6 24 days ago (May 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... 6.1.87 1.09 MB Flagfox License https://flagfox.wordpress.com/
Forget Me Not - Forget cookies & other data 11213 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 7080 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 19447 500.0 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 194890 962.0 4.0 2 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 20905 443.0 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 189.0
Fraidycat 637 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 443 10.0 4.5 10 months 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 1131.0
FrankerFaceZ 95377 109.0 4.4 3 months ago (Mar 30, 2025) Social & Communication, Games & Entertainment The Twitch Enhancement Suite - Get custom emotes and tons of new features you'll never want to go without. 4.77.3.0 6.49 MB All Rights Reserved https://www.frankerfacez.com
Freedom - Website Blocker 2792 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 316531 237.0 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 2854 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 139824 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 1350 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 7255 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 3393.0
Geminize 316 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 227802 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 93929 1401.0 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 897.0
GhostText 756 32.0 4.8 10 months 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 3456.0
Ghostery – Privacy Ad Blocker 873819 4615.0 4.3 11 days ago (Jun 12, 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. 10.4.37 11.29 MB Mozilla Public License 2.0 http://www.ghostery.com/
GitHub Gloc 406 8.0 4.8 15 days 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 640.0
GitHub Isometric Contributions 187 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 245 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 2454.0
Gitpod - Always ready to code. 2065 26.0 4.8 13 days 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 676 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 10309 194.0 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 328 11.0 4.6 7 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 276.0
Grammar and Spell Checker - LanguageTool 382583 4499.0 4.7 2 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 673991 3166.0 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 3678 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 172531 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 1360 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 5 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 2469 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 6137.0
Header Editor 11685 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 16239 183.0 4.7 6 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 91.0
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 3763 18.0 4.8 7 months ago (Nov 26, 2024) Web Development Provides better experience for using the Hoppscotch web app. Haven't used Hoppscotch ? It's an amazing quick API Request Builder. Try it at https://hoppscotch.io/ !!! 0.37 466.75 KB MIT License https://github.com/hoppscotch/hoppscotch-extension 274.0
Hover Zoom+ (Official) 10357 70.0 3.9 a month ago (May 10, 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. 1.1.4 1.54 MB MIT License https://github.com/extesy/hoverzoom/ 1334.0
Hulu Ad Blocker 1223 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 264333 1839.0 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 86665 390.0 4.7 a year 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 3857.0
I2P In Private Browsing 231 30.0 2.6 4 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 67.0
IPFS Companion 3565 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 2132.0
IPvFoo 6355 39.0 4.8 8 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 635.0
Image Search Options 39745 433.0 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 58884 873.0 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 84823 311.0 4.6 11 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 11493 288.0 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 170.0
Incognito/Normal 238 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 58220 190.0 4.9 2 months ago (Apr 10, 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. 3.13.5 713.21 KB MIT License https://getindie.wiki/
Inkah: Learn Chinese & Korean on the Web & Netflix 383 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 11591 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 10 1.0 5.0 4 years ago (Jan 31, 2021) Search Tools, Language Support The ultimate search extension for Javascript! 0.1 89.88 KB All Rights Reserved https://js.extension.sh
JShelter 435 43.0 4.4 6 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 2331 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 13130 157.0 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 630 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 703 5.0 4.8 2 months ago (Apr 28, 2025) Privacy & Security, Alerts & Updates, Other JustDeleteMe.xyz extension for Firefox-based browsers. 1.5.1 29.55 KB MIT License
KISS Translator 1605 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 3856.0
Kagi Privacy Pass 695 8.0 4.9 5 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 17584 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 1304 15.0 5.0 15 days 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 392 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 114368 690.0 4.3 2 months ago (Apr 20, 2025) Privacy & Security Official browser plugin for the KeePassXC password manager (https://keepassxc.org). 1.9.8 946.53 KB GNU General Public License v3.0 only https://keepassxc.org/
Keepa.com - Amazon Price Tracker 244895 584.0 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 59592 879.0 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 262 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) 2257 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) 176181 31.0 4.4 6 days ago (Jun 17, 2025) Firefox Language Pack for Dansk (da) – Danish 140.0.20250616.215311 420.41 KB Mozilla Public License 2.0
Language: Deutsch (German) 1057564 1286.0 4.1 6 days ago (Jun 17, 2025) Firefox Language Pack for Deutsch (de) – German 140.0.20250616.215311 441.45 KB Mozilla Public License 2.0
Language: Français (French) 1067883 1399.0 4.2 6 days ago (Jun 17, 2025) Firefox Language Pack for Français (fr) – French 140.0.20250616.215311 447.03 KB Mozilla Public License 2.0
Language: Gàidhlig (Scottish Gaelic) 107515 1.0 5.0 6 days ago (Jun 17, 2025) Firefox Language Pack for Gàidhlig (gd) – Scottish Gaelic 140.0.20250616.215311 389.68 KB Mozilla Public License 2.0
Language: Scots 107536 6.0 4.7 6 days ago (Jun 17, 2025) Firefox Language Pack for Scots (sco) 140.0.20250616.215311 314.81 KB Mozilla Public License 2.0
LastPass Password Manager 472603 8893.0 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 95088 1779.0 4.8 18 days 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) 77 11.0 3.5 3 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
LibRedirect 7087 162.0 4.5 5 months ago (Feb 1, 2025) Privacy & Security, Social & Communication Redirects YouTube, Twitter, TikTok... requests to alternative privacy friendly frontends. 3.1.0 1.09 MB GNU General Public License v3.0 only https://libredirect.github.io
Limit - Limit Distracting Sites 3994 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 6558 18.0 4.1 11 days ago (Jun 11, 2025) Language Support Automatically import foreign language pages, videos, movies from the web & study them with LingQ's web & mobile language learning apps. 2.3.5 244.62 KB GNU General Public License v3.0 only https://www.lingq.com/
Link Cleaner 2369 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 16282 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 574 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 1642 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 16804 234.0 4.8 3 months ago (Mar 30, 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. 2.6.79 21.31 MB Mozilla Public License 2.0 https://www.localcdn.org
Lovely forks 275 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 11272 207.0 4.8 a month 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 2513.0
Mailvelope 26244 122.0 4.0 a month 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 8950 101.0 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 3335.0
Material Icons for Github 1145 28.0 5.0 a month ago (May 17, 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. 1.10.4 1.1 MB MIT License https://github.com/Claudiohbsantos/github-material-icons-extension 649.0
Matte Black (Red) 20841 1221.0 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 a month ago (May 13, 2025) Web Development Mergify extension for GitHub 1.0.27 17.34 KB Apache License 2.0
MetaGer Search 7282 77.0 4.6 4 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 389611 4239.0 4.2 a month 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 2521 26.0 4.4 6 months ago (Dec 14, 2024) 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 6.1.17 1.3 MB Apache License, Version 2.0 https://www.reddit.com/r/toolbox
Modrinthify 161 8.0 5.0 a month 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 33526 806.0 4.4 18 days 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 3228 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™ 3293 136.0 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 1261 12.0 4.8 2 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
New Tab Override 61387 999.0 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 9610 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 2737 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 1545 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 99 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 48.0
News Feed Eradicator 7782 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 3796 85.0 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 1788 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
No PDF Download 3616 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 103 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 237472 2373.0 4.4 a month 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 90 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 1682 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 496 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 1901.0
Notion Web Clipper 39844 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 51 4.0 5.0 a month 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 8 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 23179 197.0 4.9 a month 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 493 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 3435 237.0 4.8 a month 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/ 23013.0
Offline QR Code Generator 22120 227.0 4.8 9 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 453.0
Okta Browser Plugin 61345 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 60106 287.0 4.7 2 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 453.0
Omni - Manage Tabs, Bookmarks, History... 185 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 7509.0
Omnivore 2199 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 41 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 160137 2611.0 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 186 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 153.0
Open external links in a container 1757 58.0 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 1919 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 644 5.0 3.8 a year 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 102.0
Open in VLC media player 24063 252.0 4.3 2 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 435 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 1140 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 20 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 1441 6.0 3.8 5 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 1428 53.0 4.5 2 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 28580 57.0 4.4 17 days 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 159 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 1396 14.0 4.7 a month 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 961 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 109 3.0 4.7 5 years ago (May 29, 2020) Bookmarks, Tabs Unofficial Firefox add-on for Pinboard.in. Bookmark web pages & add notes easily. Keyboard command: Alt + p 5.0.0 57.78 KB Mozilla Public License 2.0 https://browsernative.com/mozilla-firefox-extensions/
Pipewire Screenaudio 506 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 69101 473.0 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 629 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 4681 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 89590 59.0 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 38140 464.0 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 50652 524.0 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 14739 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 1591966 2825.0 4.8 23 days 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 42514 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 772.0
Privacy Redirect 1801 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 2082.0
Privacy Settings 1403 68.0 4.4 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 7948 86.0 3.6 11 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
ProToots 16 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 6918 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 13378 273.0 4.5 4 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 2618.0
Prometheus Formatter 150 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 129.0
Promnesia 38 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 1811.0
PronounDB 1731 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 88451 2172.0 4.7 18 days 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 55488 454.0 3.4 2 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 3360 68.0 4.9 a month ago (May 9, 2025) Appearance, Other, 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 182.0
Proxy SwitchyOmega 24459 613.0 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 22150.0
Purple Ads Blocker for Twitch 6541 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 18100 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 1279 15.0 4.5 2 years ago (Jan 24, 2023) Appearance Dynamic theming of Firefox using your Pywal colors 2.0.11 41.52 KB Mozilla Public License 2.0 https://github.com/frewacom/Pywalfox 742.0
QR Code 6328 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 103 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 54506 155.0 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 87276 643.0 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/
RSF Censorship Detector 8 1.0 5.0 2 years ago (Aug 3, 2023) Feeds, News & Blogging, Privacy & Security Find access to blocked websites 2.0.0 29.13 KB GNU General Public License v3.0 only https://github.com/RSF-RWB/collateralfreedom 37.0
RSSHub Radar 1981 41.0 4.7 4 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 6426.0
RSSPreview 2740 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 116.0
RYS — Remove YouTube Suggestions 4217 148.0 4.8 6 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 886 5.0 4.8 3 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 28922 278.0 4.3 4 months ago (Mar 5, 2025) Feeds, News & Blogging, Bookmarks, Tabs All-in-one bookmark manager 6.6.76 1.09 MB Mozilla Public License 2.0 https://raindrop.io
Rakuten Button Canada: Get Cash Back for Shopping 12197 20.0 3.7 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/
Rakuten: Get Cash Back For Shopping 138727 901.0 4.5 6 months ago (Dec 18, 2024) Shopping Start shopping smarter with Cash Back and coupons. By clicking Add to Firefox you agree to the Rakuten Extension Terms & Conditions 5.55.1 1.69 MB Mozilla Public License 2.0 https://www.rakuten.com
React Developer Tools 187646 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 236632.0
Read Aloud: A Text to Speech Voice Reader 178804 1151.0 3.8 a month ago (May 15, 2025) Feeds, News & Blogging, Appearance, Language Support Read out loud the current web-page article with one click. Supports 40+ languages. 1.79.2 565.27 KB GNU General Public License v3.0 only
Readeck 831 19.0 4.9 a month 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 18 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 998 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 300472 595.0 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 5280 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 16283 345.0 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 50842 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 14206.0
Refined GitHub 9213 176.0 4.9 a month ago (May 18, 2025) Web Development, Appearance Simplifies the GitHub interface and adds many useful features. 25.5.18 584.56 KB MIT License https://github.com/refined-github/refined-github 28546.0
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 2695 20.0 4.9 2 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 876113 4610.0 4.7 8 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 64621 187.0 4.6 11 days ago (Jun 12, 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! 0.1.0.1603 4.94 MB MIT License https://ruffle.rs/
Rust Search Extension 956 29.0 4.8 4 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 895 129.0 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 20779 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 12572 453.0 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 2986 74.0 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 349126 1704.0 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 2725.0
Semantic Scholar 308 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 7459 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 285 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 42085 1103.0 2.6 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 168 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 493.0
Side View 16031 334.0 4.1 8 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/ 205.0
Sidebar Tabs 680 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 65571 981.0 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 4113.0
Silk - Privacy Pass Client 17547 717.0 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 342.0
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 88380 1792.0 4.0 2 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 1291.0
Simple Translate 285078 2057.0 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 12822 190.0 4.8 3 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 950 138.0 4.7 a month ago (May 9, 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. 3.1.32 9.62 MB All Rights Reserved https://simpl.fyi
SingleFile 75020 963.0 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 12226 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 3148 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 5186 257.0 4.5 14 days 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 2357.0
Snooze Tabs 2793 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 12229 243.0 4.8 3 months ago (Mar 19, 2025) Privacy & Security, Social & Communication Help people in censored countries access the Internet without restrictions. Once you install and enable the extension, wait for the snowflake icon to turn green, this means a censored user is connecting through your extension to access the Internet! 0.9.3 234.63 KB BSD 2-Clause "Simplified" License https://snowflake.torproject.org/
Solarized Dark 2 3 years ago (Mar 20, 2022) Solid Solarized Dark theme, using blue backgrounds with yellow highlights 3.0 7.96 KB Creative Commons Attribution 3.0
Solarized-Light 264 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 453 6.0 4.8 3 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 144.0
Sourcegraph for Firefox 628 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 114306 174.0 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 603072 2849.0 4.8 a month ago (May 27, 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 5.12.4 1.58 MB GNU Lesser General Public License v3.0 only https://sponsor.ajay.app
Spoof Timezone 1431 65.0 3.4 2 months ago (Apr 20, 2025) Privacy & Security This extension alters browser timezone to a random or user-defined value. 0.4.4 183.4 KB Mozilla Public License 2.0 https://add0n.com/spoof-timezone.html
Startpage 200074 727.0 4.4 5 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 64 6.0 4.0 5 months ago (Jan 8, 2025) Bookmarks, Tabs Open a set of bookmarks as tabs on browser startup by simply selecting a bookmark folder which contains them 1.7.15 18.64 KB BSD 2-Clause "Simplified" License https://github.com/igorlogius/startup-bookmarks 6.0
StatsHunters 1858 12.0 4.8 3 months ago (Mar 26, 2025) Other Show tiles on Strava, Komoot, Brouter, RWGPS, Garmin and Mapy.cz route builder 2.0.8 36.54 KB Mozilla Public License 2.0 https://www.statshunters.com
SteamDB 67811 498.0 4.8 a month 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 1152 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 9997 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 121105 1159.0 4.7 3 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 185 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 1927 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 5732.0
Swedish Dictionary 20230 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 10963 678.0 4.8 2 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 234.0
TETR.IO PLUS 677 11.0 4.6 3 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 455 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 1098 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 965 16.0 4.9 6 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 239 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 1717 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 705 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 581423 3591.0 4.8 3 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 2193 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 2032 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 3077 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) 78352 462.0 4.0 a month 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 139669 1144.0 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 40770 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 1014 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 1520 43.0 4.4 4 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 76498 2378.0 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 696577 5150.0 4.7 6 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 12327 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 866.0
Terms of Service; Didn’t Read 13533 173.0 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 653 132.0 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 216 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 73340 219.0 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 14690 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) 3030 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 16081 81.0 4.2 4 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 799421 3615.0 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 12125 152.0 3.9 4 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 37 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 27330 410.0 4.5 4 years ago (Sep 4, 2021) Alerts & Updates, Other Tomato Clock is a simple browser extension that helps with online time management. 6.0.2 1.43 MB GNU General Public License v3.0 only https://github.com/samueljun/tomato-clock 341.0
Toolkit for YNAB 4506 38.0 4.7 2 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 1479.0
Torrent Control 8276 142.0 4.4 7 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 198.0
Tournesol Extension 1992 44.0 4.9 2 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 1455 90.0 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 43520 285.0 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 833 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 193257 2199.0 4.5 15 days ago (Jun 8, 2025) Appearance, Tabs Show tabs like a tree. 4.2.2 1.13 MB Custom License http://piro.sakura.ne.jp/xul/_treestyletab.html.en
Tree Style Tab Mouse Wheel 824 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 4895 486.0 4.9 6 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 727 7.0 4.9 3 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 178.0
TunnelBear VPN 22064 272.0 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 4626 140.0 4.6 2 months ago (May 2, 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. 3.80.0 669.57 KB All Rights Reserved
Twitch Auto Points 3054 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
Ukrainian dictionary 34329 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 584.0
UnTrap for YouTube 14797 109.0 4.4 6 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 44230 564.0 4.7 8 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 101.0
Unhook: Remove YouTube Recommended Videos Comments 99272 912.0 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 66937 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 5731 103.0 4.2 3 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 112.0
Uppity 810 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 89193 744.0 4.1 a month 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 748 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 1104 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 533 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 1782902 38795.0 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 2777 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 98844 766.0 4.5 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 442.0
View Image 24369 487.0 4.1 a year ago (Jun 25, 2024) Appearance, Other, Tabs Re-implements the google image, "View Image" button. 5.2.0 77.29 KB MIT License https://github.com/bijij/ViewImage 799.0
Vim Vixen 1064 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 42211 547.0 4.8 3 months ago (Mar 20, 2025) Search Tools The Hacker's Browser. Vimium provides keyboard shortcuts for navigation and control in the spirit of Vim. 2.2.1 184.31 KB MIT License https://github.com/philc/vimium 24932.0
Vimium C - All by Keyboard 6747 151.0 4.8 2 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 3855.0
Violentmonkey 110618 708.0 4.7 3 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 4762 50.0 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 75557 611.0 4.7 16 days 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 23546 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 827 3.0 4.3 a month 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 2868 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 415.0
Wappalyzer 124958 536.0 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 55009 75.0 4.2 a month 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 2708 135.0 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 35399 351.0 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 47758 308.0 4.7 6 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 1341.0
Web Developer 78593 490.0 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 19725 249.0 4.6 9 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 980 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 55091 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 3053 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? 696 13.0 4.4 a month 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 409 19.0 4.7 25 days 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 1957 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 12742 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 81070 3962.0 4.5 5 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 43071 155.0 4.8 20 days 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 325.0
Xdebug Helper for Firefox 18048 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 154 15.0 4.9 25 days 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 54.0
Yomitan 17175 66.0 4.9 13 days 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 1846.0
YouTube Alternative Switch 11 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 107373 1353.0 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 5041 69.0 4.9 14 hours ago (Jun 22, 2025) Language Support, Social & Communication, Games & Entertainment Keeps titles, descriptions and audio tracks in their original language on YouTube. 2.4.24 121.5 KB GNU Affero General Public License v3.0 only https://youtube-no-translation.vercel.app/
YouTube NonStop 136976 566.0 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 404.0
YouTube Redux 7884 249.0 4.2 17 hours 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 14810 76.0 4.5 10 months 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 314 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 54094 251.0 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 9577 49.0 4.9 20 days ago (Jun 2, 2025) Privacy & Security Manage and switch between multiple proxies quickly & easily. 3.4.0 1.95 MB GNU General Public License v3.0 only
Zoom Image 12421 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 22451 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 1447 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 248 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
a11y.css accessibility checker 201 1.0 5.0 6 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 876 41.0 5.0 a month 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 13182 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/ 138.0
cliget 3415 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 370.0
cookies.txt 25569 72.0 4.7 3 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 7937 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 314.0
ff2mpv 857 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 571.0
floccus 7375 192.0 4.4 a month 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 49380 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 4 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 842 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 5864.0
linkding extension 1383 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/ 223.0
linkding injector 186 11.0 5.0 a month 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 268.0
maya Angel #FFECF6 Solid Pastel Pink Light Theme 1 3 years ago (May 10, 2022) Solid Soft pastel pink light theme with a few darker Evil maya accents. Fairly bright but should be comfortable for most users. 1.0 7.67 KB Creative Commons Attribution 3.0
maya Evil #41283C Solid Purple-Pink Dark Theme 6 2.0 5.0 3 years ago (May 10, 2022) Solid Deep purple pink solid theme. Hopefully comfortable to use and fairly easy on the eyes. 1.0 8.25 KB Creative Commons Attribution 3.0
movie-web remastered extension 2825 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 571 27.0 4.8 5 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 485.0
musescore-downloader 4572 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 2744.0
ng-inspect 185 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 4338 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 1917.0
nos2x-fox 655 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] 1802 346.0 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 8419 178.0 4.4 3 months ago (Mar 10, 2025) Web Development, Privacy & Security Manage your Polkadot accounts outside of dapps. Injects the accounts and allows signs transactions for a specific account. 0.58.5 1.33 MB Apache-2.0 https://github.com/polkadot-js/extension 996.0
uBO-Scope 730 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 39657 276.0 4.5 a month ago (May 17, 2025) Search Tools Blocks sites you specify from appearing in Google search results 8.12.0 2.55 MB MIT License https://ublacklist.github.io/
uBlock Origin 8144907 20522.0 4.8 a month 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 54666.0
uMatrix 16920 745.0 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 4623.0
webhint 2642 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 3573 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/
{find+} 2354 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/ 446.0
划词翻译 46637 328.0 4.3 10 months 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