Most Popular Extensions
A very lightweight add-on that allows you to watch YouTube™ videos using Flash® Player instead of the default HTML5 player. The Flash® Player will consume less material resources (CPU, RAM) if your PC doesn't easily support HTML5 videos. Try it!
Free and improved ad blocker. Completely remove ALL ads. No "acceptable" ads or whitelisted advertisers, block tracking, block malware!
S3.Google Translator Requires Restart Featured
S3.Google Translator adds the power of Google Translate’s automatic translations to your browser!
It supports translation of selected text, entered phrase or whole webpage between any of 80+ languages.
New Feature: Language learning!
Use the Evernote Web Clipper to save things you see on the web into your Evernote account.
Speed Dial Requires Restart
Direct access to your most visited websites
FireGestures Requires Restart Featured
A customizable mouse gestures extension which enables to execute various commands and user scripts with six types of gestures.
Google Translate, ImTranslator, Dictionary, TTS Requires Restart Featured
COMPLETELY REDESIGNED TRANSLATOR FOR FIREFOX
ImTranslator translates text, words, webpages between more than 90 languages.
NEW: Inline Translator, Dictionary, access to Google Translate, Microsoft Translator. Unique on the fly localization.
AdBlocker for YouTube™ Featured
AdBlocker for YouTube™ removes all annoying Ads from YouTube
User Agent Switcher Requires Restart Featured
The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.
This Add-on brings a fresh look to your new tab page, powered by Yahoo. It also provides default Yahoo experience for search and homepage.
"#1 Rated Firefox Youtube Video Downloader", Only one with 1080p Full-HD and 256kbps MP3 Direct Links. A clean, fast and simple addon for superfast and easy downloads in FLV, 3GP, MP3, MP4, 720p, 1080p qualities on Youtube pages.
Xmarks Sync Requires Restart
Xmarks is the #1 bookmarking and open tab add-on. Keep your bookmarks, and open tabs backed up and synchronized across computers and browsers. Mobile phones with Premium access. Utilize LastPass to sync passwords!
This official add-on enables Firefox to provide quick fixes for selected issues.
This add-on is not compatible with your version of Firefox because of the following:
- Add-on has opted into strict compatibility checking.
Easy Access Requires Restart
Allow an easy access to the system commands and other programs in your computer.
In some countries YouTube videos are blocked! Unblock them with this Addon.
Supported countries: Germany, Netherlands, Spain, ...? not US compatible
Status+Support: proxtube.com & Twitter: twitter.com/ProxTube (EN/DE)
YouTube High Definition 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.
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!
YouTube Flash Video Player is a powerful tool that will let you choose Flash video player as default YouTube video player.
Download Statusbar Requires Restart
View and manage downloads from a tidy statusbar - without the download window getting in the way of your web browsing.
Thanks Tekzilla for your awesome review! Click here to see their video: http://youtu.be/BUDqWrJ-Vao
This is an official Amazon extension for Firefox. Amazon Assistant helps you make better shopping decisions by showing product comparisons at thousands of retail sites. By installing you agree to the Conditions of Use at amazon.com/gp/BIT/TOU.