Social & Communication
YouTube Flash Video Player is a powerful tool that will let you choose Flash video player as default YouTube video player.
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.
Pearltrees lets you organize all your interests.
Messenger for Facebook™ lets you bring a Messenger right into your browser to chat with your friends.
Removes the checks WhatsApp put in place to disable Firefox accessing WhatsApp Web, the new web interface.
**NOTICE: WhatsApp Web is now compatible with Firefox! You don't need to install this addon any more**
Enhance your YouTube watching experience! Auto HD, Ad Block, Cinema Mode, Mouse Wheel Volume Control, Screenshot...
Twitter App brings Twitter right into your Firefox Sidebar.
TinyURL Generator Requires Restart
An extension to silently generate a TinyURL for your current page at the click of a button. Also shows you where TinyURLs on the web will take you.
Show timeline of Sina weibo in the AwesomeBar. Providing more functions at the same time.
YouTube Video Replay is a new tool that lets you replay YouTube Videos.
Photo Zoom for Facebook™ lets you zoom Facebook™ images.
This extension blocks almost all Russian and pro-russian propaganda sites, that spread false information in the world.
AntyŚledzik - Skasuj śledzika z NK Requires Restart
AntyŚledzik jest dodatkiem usuwającym Śledzika KOMPLETNIE z naszej-klasy.pl. Poza kasowaniem boxa ze strony głównej kasuje także linki w menu oraz na stronie profilu.
Youtube Video Center changes the new Youtube design and centers the whole Youtube page on the screen automatically.
Message Seen Disable for Facebook™ lets you turn off Facebook™'s Message Seen feature automatically for your account. You can still use Seen feature for others.
Minggl Requires Restart
Minggl is a social interaction manager. The Minggl toolbar makes it easy to manage information, communication, and navigation across (and independent of) social networks. Minggl adds a "relationship layer" across all your sites.
S3.Google Translator Requires Restart
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!
F.B. Purity hides the ads, app spam and other annoying clutter from your facebook news feed, lets you increase the font size, change colours plus many more features and generally makes Facebook a lot less annoying to use.
Google Reverse Image Search is a simple tool that lets you search the images reversely on Google Images and find the other copies of the very image you are looking for on the web.