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.
Easy Access Requires Restart
Allow an easy access to the system commands and other programs in your computer.
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.
Dark YouTube Theme Destacat
Shut down the lights on YouTube.
Classic Theme Restorer Requires Restart
FireGestures Requires Restart Destacat
A customizable mouse gestures extension which enables to execute various commands and user scripts with six types of gestures.
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.
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.
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.
Theme Font & Size Changer Destacat
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.
Turn Off the Lights Destacat
La pàgina sencera s'enfosquirà, així podrà veure els vídeos com si fos al cinema.
Makes every page (or only pages that you want) to have light text on dark background. Exact colors are customizable.
Disable "play next video" feature on Youtube, TED and Vimeo.
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.
Print Edit Requires Restart Destacat
Allows editing of web page content while in Print Preview mode, prior to printing or saving as HTML or PDF. Compacts the layout and removes unwanted content such as adverts, sidebars and blank pages. Any element can be formatted, hidden or deleted.
Controls as and when to display the Flash player and the HTML5 player.
MeasureIt Requires Restart
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
All-in-One Sidebar Requires Restart
AiOS lets you open various windows as sidebar panels, and quickly switch between them. So it put an end to the window chaos! In addition to bookmarks and history it opens dialogues such as downloads, add-ons and more in the sidebar.