To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!Close
Welcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.Close
A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.
gtranslate No Restart Featured
With gtranslate you can translate any text in a web page just by selecting and right-clicking over it. The extension uses the Google translation services to translate the text.
Google Privacy Featured
Make some popular websites respect your privacy settings.
Please see the known issues below!
Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Tumblr, and many, many other sites. You can even customize Firefox and other programs themselves.
Facebook™ Disconnect No Restart Featured
Facebook™ Disconnect is an efficient firewall to disconnect third-party websites from accessing to your Facebook.
NoSquint allows you to adjust the text-only and full-page (both text and images) zoom levels as well as color settings both globally (for all sites) and per site.
YouTube High Definition No Restart 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.
Screengrab (fix version) Featured
Screengrab! saves webpages as images.
New features: upload to internet
cyscon Security Shield No Restart Featured
Protect yourself against cyber criminals!
Say no to botnets, malvertising, data breaches, phishing, and malware. Security - Made in Germany.
Duplicate Tabs Closer No Restart Featured
Detects and automatically closes duplicate tabs.
Add to Search Bar No Restart Featured
Make any pages' search functionality available in the Search Bar (or "search box")...
New Tab Tools No Restart Featured
Customizes the new tab page. Add more tiles. Add the launcher from Firefox start. Have a background image. Set new tile images and titles. See recently closed tabs. And more...
Add-ons Manager Context Menu Featured
Add more items to Add-ons Manager context menu.
Beyond Australis No Restart Featured
Australis was the code name for the current Firefox theme, it aimed to make a great browser look awesome. Now you can go one step further and also make it feel awesome to use!
Keyword Search No Restart Featured
Search in the address bar without changing your search engine.
YouTube Control Center No Restart 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.
Tab Scope Featured
Preview and navigate tab contents through popup.
Reload Plus No Restart Featured
Supercharge your reload button and hotkeys!
QR Code Image Generator No Restart Featured
Create a QR Code of the selected text or current URL. Use CTRL-SHIFT-Q to quickly see the QR Code. Also possible to create a QR Code from free text within Firefox. Works completely offline! Now with UTF8 support.