Stylish Featured

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Orkut, and many, many other sites. You can even customize Firefox and other programs themselves.

Rated 4 out of 5 stars (763)
4,012 weekly downloads

Easy Access

Allow an easy access to the system commands and other programs in your computer.

Rated 4 out of 5 stars (11)
3,755 weekly downloads

Personas Plus

Personas 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 Personas.

Rated 3 out of 5 stars (956)
3,334 weekly downloads

Tab Mix Plus Featured

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.

Rated 4 out of 5 stars (2,550)
3,211 weekly downloads

Classic Theme Restorer

Squared tabs, appmenu, add-on bar, small button view and many more 'old' features for Firefox 29+ (Windows / MacOSX / Linux).

All builds & changelogs on versions page!

Rated 5 out of 5 stars (1,005)
2,207 weekly downloads

FireGestures Featured

A customizable mouse gestures extension which enables to execute various commands and user scripts with six types of gestures.

Rated 4 out of 5 stars (887)
1,384 weekly downloads

Webmail Ad Blocker No Restart Featured

Expand your email area by blocking and removing ads on the right hand side of the screen when using Gmail, Hotmail, and Yahoo Mail.

Rated 4 out of 5 stars (188)
1,289 weekly downloads

Reddit Enhancement Suite No Restart

A suite of tools to enhance Reddit

Rated 5 out of 5 stars (92)
1,274 weekly downloads

Flash Control No Restart

Controls as and when to display the Flash player and the HTML5 player.

Rated 4 out of 5 stars (53)
1,014 weekly downloads

Tree Style Tab

Show tabs like a tree.

Rated 4 out of 5 stars (1,256)
876 weekly downloads

Theme Font & Size Changer No Restart 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.

Rated 5 out of 5 stars (155)
856 weekly downloads

All-in-One Sidebar

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.

Rated 5 out of 5 stars (1,392)
824 weekly downloads

NoSquint Featured

NoSquint allows you to adjust the text-only and full-page (both text and images) zoom levels as well as color settings both globally (for all sites) and per site.

Rated 5 out of 5 stars (462)
750 weekly downloads

I don't care about cookies No Restart

Get rid of annoying cookie warnings from tens of thousands of 'infected' websites!

Rated 5 out of 5 stars (37)
721 weekly downloads

The Addon Bar (Restored) No Restart Featured

Gives you a place to put all your add-on buttons without over-crowding the navigation bar.

Rated 5 out of 5 stars (286)
597 weekly downloads

Forecastfox (fix version) Featured

Get international weather forecasts from and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.

Now Available for: Firefox, Thunderbird and SeaMonkey!

Rated 5 out of 5 stars (150)
590 weekly downloads

Turn Off the Lights

The entire page will be fading to dark, so you can watch the video as if you were in the cinema.

Rated 5 out of 5 stars (252)
582 weekly downloads

Picture Blocker No Restart

Block/Allow image loading by pressing user-defined hot keys and/or a toggle button. Inspired by the add-on 'Image Block' by Hemant Vats.

Rated 4 out of 5 stars (5)
577 weekly downloads

New Tab Tools No Restart 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...

Rated 4 out of 5 stars (173)
570 weekly downloads

Easy Copy Paste

No more Ctrl+C / V. Fastest way to copy and paste. Copy with and without formatting! Quickly Tun On and OFF copy paste feature when you need it.

Rated 3 out of 5 stars (12)
553 weekly downloads