Manage site-specific zoom levels and color settings
Stylish Requires Restart
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.
By blocking annoying ads and nosy trackers, adaware ad block nearly doubles your browsing speed! And with the most robust antivirus-level cloud-scanning technology of any ad blocker on the market, you’ll be safe from the latest cyber-threats.
Tab Mix Plus Requires Restart
Tab Mix Plus enhances Firefox's tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager.
Easy Access Requires Restart
Allow an easy access to the system commands and other programs in your computer.
Classic Theme Restorer Requires Restart
NOTE: Reddit Enhancement Suite is developed independently, and is not officially endorsed by or affiliated with reddit.
RES is a suite of tools to enhance your reddit browsing experience.
Shut down the lights on YouTube.
FireGestures Requires Restart Featured
A customizable mouse gestures extension which enables to execute various commands and user scripts with six types of gestures.
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.
Zoom Page Requires Restart
Full featured zoom manager with independent page and image zoom modes. Choose from four zoom modes: Default Zoom, Fit-To-Width, Default Zoom + Site Specific or Fit-To-Width + Site Specific. Button style and zoom levels are fully configurable.
Makes every page (or only pages that you want) to have light text on dark background. Exact colors are customizable.
Personas (now known as lightweight themes) are free, easy-to-install "skins" for Firefox. Personas Plus extends that built-in functionality to give you even more control and easier access to new, popular, and your own favorite themes.
Disable "play next video" feature on Youtube, TED and Vimeo.
Controls as and when to display the Flash player and the HTML5 player.
A very simple extension for learning web page colors. Copy the RGB or Hex color code of any pixel displayed in your browser to the clipboard (in CSS/HTML format). Similar in function to Internet Explorer's color picker.
Get rid of annoying cookie warnings from almost all 'infected' websites!
Tree Style Tab Requires Restart
Show tabs like a tree.