Add-ons
To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
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Choose from thousands of extra features and styles to make Firefox your own.
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Video Downloader Prime
Compatible with Firefox 57+
Featured
Easily download most popular video formats.
Awesome Screenshot Plus - Capture, Annotate & More
Compatible with Firefox 57+
Featured
Capture the whole page or any portion, annotate it with rectangles, circles, arrows, lines and text, blur sensitive info, one-click upload to share. And more!
Tab Reloader (Page Reloader)
Compatible with Firefox 57+
Featured
An easy-to-use tab reloader with custom reloading time settings for individual tabs
Webmail Ad Blocker
Compatible with Firefox 57+
Featured
Expand your email area by blocking and removing ads on the right hand side of the screen when using Gmail, Hotmail, Outlook.com and Yahoo Mail.
Zoom Page WE
Compatible with Firefox 57+
Featured
Zoom web pages (either per-site or per-tab) using full-page zoom, text-only zoom, automatic fit-to-width and minimum font size.
AdBlocker Ultimate
Compatible with Firefox 57+
Featured
Free and improved ad blocker. Completely remove ALL ads. No "acceptable" ads or whitelisted advertisers, block tracking, block malware!
Tab2QR
Compatible with Firefox 57+
Featured
A minimal add-on implemented by WebExtension standard. Send the page you are currently viewing to your mobile device.
Emoji Keyboard
Compatible with Firefox 57+
Featured
A free extension of the web tool https://emojikeyboard.org. It helps input emoji in the web browser with an extensive search functionality.
Grammarly for Firefox
Compatible with Firefox 57+
Featured
Grammarly will help you communicate more effectively. As you type, Grammarly flags mistakes and helps you make sure your messages, documents, and social media posts are clear, mistake-free, and impactful.
Desktop Messenger for Telegram™
Compatible with Firefox 57+
Featured
An easy access to Telegram, and notifies you of incoming posts.
YouTube High Definition
Compatible with Firefox 57+
Featured
YouTube High Definition is a powerful tool that will let you automatically play all YouTube videos in HD (High Definition), turn off annotations, change video player size, auto stop videos, auto mute videos, control embedded videos and much more.
Google™ Translator Lite
Compatible with Firefox 57+
Featured
a powerful tool to translate words or sentences
Font Finder (revived)
Compatible with Firefox 57+
Featured
Get all CSS styles of selected text
YouTube Control Center
Compatible with Firefox 57+
Featured
YouTube Control Center is an open-source project that aims to enhance the overall YouTube experience by providing the end user with more control in what the playback process is concerned.
Youtube Dark Mode
Compatible with Firefox 57+
Featured
Switch youtube to dark mode. Dark mode will help devices save battery and useful for your sleeping. Make donation for us http://www.paypal.me/hoangthanh. Thank you!
AdBlocker for YouTube™
Compatible with Firefox 57+
Featured
Removes all annoying Ads from YouTube
FoxyTab
Compatible with Firefox 57+
Featured
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
uBlock Origin
Compatible with Firefox 57+
Featured
Finally, an efficient blocker. Easy on CPU and memory.
Privacy Badger
Compatible with Firefox 57+
Featured
Protects your privacy by blocking spying ads and invisible trackers.
Video Speed Controller
Compatible with Firefox 57+
Featured
Speed up, slow down, advance and rewind any HTML5 video with quick shortcuts.
To create your own collections, you must have a Mozilla Add-ons account.
