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List of free and recommended Mozilla WebExtensions
List of Firefox extensions From Wikipedia, the free encyclopedia
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A list of all Mozilla-recommended browser extensions on the Firefox Add-ons store (as of October 8, 2025).
 | Parts of this article (those related to Firefox) need to be updated. (March 2025) |
More information Name, License Type ...
| Name | License Type | REP[1] | Available on Firefox for Android™ | Description | Categories | |
|---|---|---|---|---|---|---|
| Show Video Controls for Firefox | GPL-3.0 | Yes | Yes | Automatically enables video controls when playing html webm videos. | Feeds, News & Blogging + Photos, Music & Videos + Games & Entertainment | |
| Sink It for Reddit | All rights reserved | Yes | Yes | Upgrade your Reddit experience with color coded comments, easier nav, sub-reddit blocking, gestures for upvoting, ad+nag blocking, and more. It's like RES, for mobile! | Feeds, News & Blogging + Games & Entertainment | |
| PhotoShow | All rights reserved | Yes | No | Hover to zoom and view high-definition images. Instantly enlarge visuals, crafted for all your favorite websites—and for you. | Photos, Music & Videos + Social & Communication + Shopping | |
| GIPHY for Firefox | MIT | Yes | Yes | Bring the power of a GIF search engine anywhere on the web. Respond to emails, tweets and more with GIFs quickly and easily. Add GIPHY GIFs to your Gmail, Facebook, Twitter and more. Just search, drag and drop or right click! | Search Tools | |
| Stylebot | MIT | Yes | No | Change the appearance of the web instantly | Web Development + Appearance | |
| Clippings | MPL-2.0 | Yes | No | Save frequently-entered text for pasting later. | Feeds, News & Blogging + Social & Communication | |
| Livemarks | MIT | Yes | No | Get auto-updated RSS feed bookmark folders. | Feeds, News & Blogging + Alerts & Updates | |
| automaticDark - Time-Based Theme Changer | MIT | Yes | No | Automatically change Firefox's theme based on the time. | Appearance | |
| Snap Links Plus | MIT | Yes | No | Select a number of links with a rectangle and open them in new tabs. You can also lasso checkboxes to quickly check or uncheck them. Works with radio buttons as well. | Feeds, News & Blogging + Appearance + Tabs | |
| Tabby - Window & Tab Manager | MPL-2.0 | Yes | No | Tabby helps you manage a lot of windows and tabs easily; it can help you open, close, move, pin, and do many other things on tabs and windows quickly. With Tabby, you can even save all you windows and tabs for later with just one click! | Search Tools + Tabs | |
| Foxy Gestures | GPL-3.0 | Yes | No | Mouse gestures for Firefox. A web extension alternative to FireGestures created by a long time FireGestures user. | Appearance + Other | |
| FoxyTab | MPL-2.0 | Yes | No | 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 | Privacy & Security + Tabs | |
| PocketTube: Youtube Subscription Manager | MPL-2.0 | Yes | No | The best way to group your subscriptions Using this simple extension you can create collections that seamlessly fit into YouTube's layout. | Feeds, News & Blogging + Social & Communication | |
| Zoom Page WE | GPL-2.0 | Yes | No | 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. | Appearance | |
| YouTube Search Fixer | GPL-3.0 | Yes | No | Remove ALL distracting search results, redirect shorts back to legacy page and try little visual changes suited for low resolution screens. | Search Tools + Appearance + Social & Communication | |
| Checker Plus for Gmail™ | All rights reserved | Yes | No | Get desktop notifications, read, listen or delete emails without opening Gmail or Inbox by Gmail & easily manage multiple accounts. | Feeds, News & Blogging + Appearance + Social & Communication + Alerts & Updates | |
| Measure-it | GPL-3.0 | Yes | No | Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels. | Web Development + Appearance | |
| Copy PlainText | MPL-2.0 | Yes | No | Copy Plain Text without any formatting | Search Tools + Appearance + Social & Communication | |
| Webmail Ad Blocker | MPL 1.1 | Yes | No | Remove advertising clutter from your web-based email. Expand your viewable area by blocking and removing ads on the right-hand side of the screen when using Gmail, Hotmail, Outlook.com and Yahoo Mail. | Appearance + Social & Communication | |
| Chrome Mask | MIT | Yes | Yes | Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise. | Web Development | |
| Dark Background and Light Text | MPL-2.0 | Yes | Yes | Make every web page (or just the pages you want) display light text on dark backgrounds. All color variations are fully customizable. | Appearance | |
| Emoji | MPL-2.0 | Yes | Yes | It permits just with a single click to copy an emoji. There is a search-box and the "Most used emojis" section (the first one). If you want to send feedback or report bug, please contact me | Search Tools + Appearance | |
| Adaptive Tab Bar Color | MIT | Yes | No | Changes the color of Firefox theme to match the website’s appearance. | Appearance + Tabs | |
| Print Edit WE | GPL-2.0 | Yes | No | 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. | Appearance | |
| Dictionary Anywhere | GPL-3.0 | Yes | No | View definitions easily as you browse the web. Double-click any word to view its definition in a small pop-up bubble. It also supports Spanish, German, French language alongside English. Enjoy Reading Uninterrupted!!!. | Search Tools + Language Support + Other | |
| Tab Stash | MPL-2.0 | Yes | No | Easily save and organize batches of tabs as bookmarks. Clear your tabs, clear your mind. Only for Firefox. | Bookmarks + Tabs | |
| Undo Close Tab | GPL-3.0 | Yes | No | 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. | Appearance + Tabs | |
| Feedbro | All rights reserved | Yes | No | Advanced Feed Reader - Read news & blogs or any RSS/Atom/RDF source. | Feeds, News & Blogging + Photos, Music & Videos | |
| TinEye Reverse Image Search | MIT | Yes | No | Click on any image on the web to search for it on TinEye. Recommended by Firefox! Discover where an image came from, see how it is being used, check if modified versions exist or locate high resolution versions. Made with love by the TinEye team. | Search Tools + Photos, Music & Videos | |
| Turn Off the Lights for Firefox | GPL-2.0 | Yes | Yes | The entire page will be fading to dark, so you can watch the videos as if you were in the cinema. Works for YouTube and Beyond. Dark mode for all websites. It works for all known video sites such as YouTube, Vimeo, Twitch, Dailymotion, Facebook, etc. | Appearance + Photos, Music & Videos | |
| Turbo Download Manager | MPL-2.0 | Yes | No | A download manager with the ability to pause and resume downloads, download remote files, and more. | Download Management + Appearance + Games & Emtertainment | |
| Download Manager (S3) | MPL-2.0 | Yes | Yes | View and manage downloads from a tidy status bar. | Download Management | |
| Clear Cache | MPL-2.0 | Yes | Yes | Advanced cache clearing with time periods, current tab filter, and smart notifications. Perfect for developers and power users. F9 shortcut included! | Web Development + Privacy & Security + Search Tools | |
| Sidebery | MIT | Yes | No | Vertical tabs tree and bookmarks in sidebar with advanced containers configuration, grouping and many other features. | Bookmarks + Tabs | |
| Augmented Steam | GPL-3.0 | Yes | No | Augments your Steam Experience | Shopping + Games & Entertainment | |
| Don't track me Google | MIT | Yes | Yes | Removes the annoying link-conversion at Google Search / maps / ... | Privacy & Security + Search Tools | |
| Disconnect | GPL-3.0 | Yes | No | Make the web faster, more private, and more secure. | Web Development + Privacy & Security | |
| Block Site | MPL-2.0 | Yes | No | A customizable, password-protected website blocker and redirector. | Privacy & Security + Appearance + Tabs | |
| Popup Blocker (strict) | MPL-2.0 | Yes | Yes | Strictly block all popup requests from any website by default. A notification window is opened to allow you accept, reject, open the popup in background page, or redirect the current page to popup address | Privacy & Security + Tabs | |
| Tabliss - New Tab | GPL-3.0 | Yes | No | A beautiful New Tab page with many customisable backgrounds and widgets that does not require any permissions. | Appearance + Photos, Music & Videos + Other + Tabs | |
| SingleFile | GPL-3.0 | Yes | Yes | Save an entire web page—including images and styling—as a single HTML file. | Download Management + Privacy & Security | |
| SteamDB | BSD 2-Clause | Yes | Yes | Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats. | Shopping + Games & Entertainment | |
| Gesturefy | GPL-3.0 | Yes | No | Navigate, operate, and browse faster with mouse gestures! A customizable mouse gesture add-on with a variety of different commands. | Appearance + Other | |
| User-Agent Switcher and Manager | MPL-2.0 | Yes | No | 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. | Web Development + Privacy & Security | |
| Flagfox | All rights reserved | Yes | No | 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... | Web Development + Alerts & Updates | |
| Download All Images | MPL-2.0 | Yes | No | Easily save images with a wide range of customization features, such as file size, dimensions, and image type. | Web Development + Photos, Music & Videos | |
| 'Improve YouTube!' (For YouTube & Video) | GPL-3.0 | Yes | Yes | Youtube Extension. Powerful but lightweight. Enrich your Youtube and content selection. Make YouTube tidy and smart! (Layout, Filters, Shortcuts, Playlist) | Appearance + Photos, Music & Videos + Tabs | |
| Stylus | GPL-3.0 | Yes | Yes | 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. | Web Development + Appearance | |
| YouTube NonStop | MIT | Yes | No | 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! | Photos, Music & Videos + Games & Entertainment | |
| Tab Session Manager | MPL-2.0 | Yes | No | Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync. | Appearance + Tabs | |
| YouTube High Definition | GPL-3.0 | Yes | Yes | 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. | Photos, Music & Videos + Other + Games & Entertainment | |
| DownThemAll! | GPL-2.0 | Yes | No | The Mass Downloader for your browser | Download Management | |
| FoxyProxy Standard | GPL-2.0 | Yes | Yes | 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. | Web Development + Privacy & Security | |
| Decentraleyes | MPL-2.0 | Yes | Yes | 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. | Privacy & Security | |
| NoScript Security Suite | GPL-2.0 | Yes | Yes | 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. | Privacy & Security + Alerts & Updates | |
| Simple Translate | MPL-2.0 | Yes | No | Quickly translate selected or typed text on web pages. Supports Google Translate and DeepL API. | Language Support | |
| Grammar and Spell Checker - LanguageTool | All rights reserved | Yes | No | 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. | Language Support + Social & Communication | |
| AdBlocker for YouTube™ | MPL-2.0 | Yes | No | Remove all annoying ads from YouTube. | Privacy & Security + Appearance + Photos, Music & Videos | |
| BetterTTV | All rights reserved | Yes | No | Enhances Twitch and YouTube with new features, emotes, and more. | Social & Communication + Games & Entertainment | |
| SponsorBlock - Skip Sponsorships on YouTube | GPL-3.0 | Yes | Yes | 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. | Appearance + Games & Entertainment | |
| Ghostery – Privacy Ad Blocker | MPL-2.0 | Yes | Yes | The best privacy tool and ad blocker extension for Firefox. Stop trackers, speed up websites and block ads everywhere including YouTube and Facebook. | Web Development + Privacy & Security | |
| DuckDuckGoSearch & Tracker Protection | Apache License 2.0 | Yes | No | Actively protects your data in your current browser | Privacy & Security + Search Tools | |
| Dark Reader | MIT | Yes | Yes | Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing. | Web Development + Appearance + Other | |
| AdGuard AdBlocker | GPL-3.0 | Yes | Yes | Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites. | Privacy & Security | |
| Video DownloadHelper | All rights reserved | Yes | No | Download videos from the web. Easy, smart, no tracking. | Download Management | |
| EPUBReader | All rights reserved | Yes | No | Read ePub files right in Firefox. No additional software needed! | Other | |
| Read Aloud: A Text to Speech Voice Reader | GPL-3.0 | Yes | Yes | Read out loud the current web-page article with one click. Supports 40+ languages. | Feeds, News & Blogging + Appearance + Language Support | |
| CanvasBlocker | MPL-2.0 | Yes | Yes | Alters some JS APIs to prevent fingerprinting. | Privacy & Security | |
| Swift Selection Search | MIT | Yes | No | Swiftly access your search engines in a popup panel when you select text in a webpage. Context menu also included! | Search Tools + Other | |
| Unhook: Remove YouTube Recommended Videos Comments | All rights reserved | Yes | Yes | Hide YouTube related videos, comments, video suggestions wall, homepage recommendations, trending tab, and other distractions. | Appearance + Photos, Music & Videos | |
| PopUpOFF | Apache License 2.0 | Yes | No | Removes and prevents popups, overlays and cookie notifications, other tools do not. Enjoy the original look of the internet. | Privacy & Security + Appearance | |
| LeechBlock NG | MPL-2.0 | Yes | Yes | 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. | Other | |
| Clear Browsing Data | GPL-3.0 | Yes | No | Delete browsing data directly from the browser toolbar. Clear cookies, history and cache with a single click. | Web Development + Privacy & Security | |
| SoundFixer | Unlicense | Yes | Yes | Helps you fix annoying sound problems on sites like YouTube: audio in one channel only, too quiet or too loud. (Unfortunately, this extension does not work on all websites because of cross-domain issues — but it does work on YouTube!) | Photos, Music & Videos + Other | |
| Audio Equalizer | MPL-2.0 | Yes | No | Stylish audio equalizer in toolbar popup. | Appearance + Photos, Music & Videos + Tabs | |
| Easy Youtube Video Downloader Express | MPL-2.0 | Yes | No | A simple extension for superfast and easy YouTube downloads in FLV, 3GP, MP3, MP4, 720p, and 1080p formats. | Download Management + Photos, Music & Videos | |
| History Cleaner | MIT | Yes | No | Deletes browsing history older than a specified number of days. | Privacy & Security | |
| TWP - Translate Web Pages | MPL-2.0 | Yes | Yes | Translate your page in real time using Google, Bing or Yandex. It is not necessary to open new tabs. | Language Support | |
| RoboFormPassword Manager | All rights reserved | Yes | No | RoboForm, the #1 ranked Password Manager makes your life easier by remembering passwords and logging you into websites automatically | Privacy & Security + Social & Communication + Other | |
| New Tab Override | MPL-2.0 | Yes | No | New Tab Override allows you to set the page that shows whenever you open a new tab. | Tabs | |
| Auto Tab Discard | MPL-2.0 | Yes | Yes | Increase browser speed and reduce memory load and when you have numerous open tabs. | Appearance + Tabs | |
| Return YouTube Dislike | GPL-3.0 | Yes | No | Returns ability to see dislike statistics on youtube | Social & Communication + Other | |
| Image Search Options | MPL 1.1 | Yes | No | A customizable reverse image search tool that conveniently presents a variety of top image search engines. | Search Tools + Photos, Music & Videos | |
| Web Archives | GPL-3.0 | Yes | Yes | View archived and cached versions of web pages on various search engines, such as the Wayback Machine and Archive․is. | Feeds, News & Blogging + Search Tools | |
| Link Gopher | GPL-3.0 | Yes | No | 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. | Other | |
| Bitwarden Password Manager | GPL-3.0 | Yes | Yes | At home, at work, or on the go, Bitwarden easily secures all your passwords, passkeys, and sensitive information. | Privacy & Security | |
| Simple Tab Groups | MPL-2.0 | Yes | No | Create, modify, and quickly change tab groups | Appearance + Other + Tabs | |
| Tomato Clock | GPL-3.0 | Yes | Yes | Tomato Clock is a simple browser extension that helps with online time management. | Alerts & Updates + Other | |
| Default Bookmark Folder | MIT | Yes | No | Allows you to choose the default bookmark location folder and quickly bookmark pages via a dedicated icon. | Bookmarks + Other | |
| Turbo Download Manager | MPL-2.0 | Yes | No | A download manager with the ability to pause and resume downloads, download remote files, and more. | Download Management + Appearance + Games & Entertainment | |
| Immersive Translate - Translate Website & PDF | All rights reserved | Yes | Yes | Free Translate Website, Translate PDF & Epub eBook, Translate Video Subtitles in Bilingual | Appearance + Language Support | |
| Raindrop.io | MPL-2.0 | Yes | No | All-in-one bookmark manager | Feeds, News & Blogging + Bookmarks + Tabs | |
| ClearURLs | GPL-3.0 | Yes | Yes | Removes tracking elements from URLs | Privacy & Security | |
| Tree Style Tab | GPL-2.0 | Yes | No | Show tabs like a tree. | Appearance + Tabs | |
| uBlock Origin | GPL-3.0 | Yes | Yes | Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory. | Privacy & Security | |
| Worldwide Radio | MPL-2.0 | Yes | Yes | Listen to live radio stations from around the world! | Feeds, News & Blogging + Photos, Music & Videos + Games & Entertainment | |
| Weather Extension | MPL-2.0 | Yes | No | The best way to see the weather right in your browser. Easier than looking outside! | Feeds, News & Blogging + Alerts & Updates | |
| Yomitan | GPL-3.0 | Yes | Yes | Powerful and versatile pop-up dictionary for language learning used by 100,000+ language learners. | Appearance + Language Support | |
| Time Tracker - Web Habit Builder | MIT | Yes | Yes | Track time, analyze your habits and block addictive sites | Other | |
| OneTab | Apache License 2.0 | Yes | Yes | OneTab - Too many tabs? Convert tabs to a list and reduce browser memory | Bookmarks + Tabs | |
| To Google Translate | MPL-2.0 | Yes | No | Right-click a section of text and click the Translate icon next to it to text translate or listen to it in your language. | Feeds, News & Blogging + Appearance + Language Support | |
| ScrollAnywhere | All rights reserved | Yes | No | 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 | Search Tools + Appearance | |
| FoxClocks | All rights reserved | Yes | No | FoxClocks shows times around the world - or just your local time - at the bottom of your browser. It deals with daylight saving time so you don't have to. | Social & Communication | |
| Privacy Badger | GPL-3.0 | Yes | Yes | Automatically learns to block hidden trackers. Made by the leading digital rights nonprofit EFF to stop companies from spying on you. | Privacy & Security | |
| Consent-O-Matic | MIT | Yes | Yes | Automatic handling of GDPR consent forms | Privacy & Security | |
| Tab Reloader (page auto refresh) | MPL-2.0 | Yes | No | An easy-to-use tab reloader with custom reloading time settings for individual tabs | Web Development + Tabs | |
| Custom Scrollbars | MPL-2.0 | Yes | No | Give Firefox a personal touch with customized scrollbars! | Appearance | |
| Tranquility Reader | GPL-3.0 | Yes | No | Tranquility Reader improves the readability of web articles by removing unnecessary elements like ads, images, social sharing widgets, and other distracting fluff. | Feeds, News & Blogging + Appearance | |
| Port Authority | GPL-2.0 | Yes | No | Blocks malicious websites from port-scanning your computer/network and dynamically blocks all LexisNexis endpoints from running their invasive data collection scripts. | Web Development + Privacy & Security | |
| Search by Image | GPL-3.0 | Yes | Yes | A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye. | Search Tools + Photos, Music & Videos + Shopping | |
| Imagus | All rights reserved | Yes | Yes | With a simple mouse-over you can enlarge images and display images/videos from links. | Photos, Music & Videos | |
| Control Panel for Twitter | MIT | Yes | Yes | Gives you more control over Twitter and adds missing features and UI improvements | Social & Communication |
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