Video Downloader Prime Featured
Easily download most popular video formats.
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.
Menu Wizard Requires Restart Featured
Customize menus : Helps removing, moving and renaming menus and menu items
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey
Gmail™ Notifier + Featured
Gmail™ Notifier Plus alerts you of new email messages. Users can also read or reply to emails, delete or mark them as read, all without having to open a new window.
Reader is the ultimate Reader tool for Firefox.
Beyond Australis 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!
Lightbeam for Firefox Featured
Lightbeam is a Firefox add-on that enables you to see the first and third party sites you interact with on the Web. Using interactive visualizations, Lightbeam shows you the relationships between these third parties and the sites you visit.
Font Finder Requires Restart Featured
FontFinder is created for designers, developers and typographers. It allows a user to analyze the font information of any element on a page, copy any piece(s) of that information to the clipboard, and perform inline replacements to test new layouts.
YouTube™ Control Center 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.
Greasemonkey Requires Restart Featured
FoxyProxy Standard Requires Restart Featured
FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.
New Tab Tools 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...
Duplicate Tabs Closer Featured
Detects and automatically closes duplicate tabs.
Weather Forecast Plus Featured
Weather Forecast Plus is the easiest way to check the weather while you browse internet
Smart HTTPS Featured
Automatically changes HTTP addresses to the secure HTTPS, and if loading encounters error, reverts it back to HTTP.
Google™ Translator Featured
Google™ Translator is a handy multi-language translator built on top of Google Translate. It gives you Google Translate UI feel right on your Firefox toolbar.
QuickJava Requires Restart Featured
FireSSH Requires Restart Featured
Forecastfox (fix version) Requires Restart Featured
Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.
Now Available for: Firefox, Thunderbird and SeaMonkey!
Theme Font & Size Changer Featured
Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.