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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 (2,474)
1,033,624 users

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 (729)
761,552 users

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 (950)
502,133 users

Classic Theme Restorer (Customize UI)

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 (869)
450,297 users

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 (851)
420,850 users

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 (441)
348,847 users

MinimizeToTray revived

Minimizes windows into the system tray.

Rated 5 out of 5 stars (287)
266,434 users

All-in-One Sidebar Featured

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 (1,371)
248,762 users

Reddit Enhancement Suite No Restart

A suite of tools to enhance Reddit

Rated 5 out of 5 stars (80)
247,786 users

Menu Editor

Customize application menus:

Rearrange or remove menuitems from the main context menu (right-click menu) and main menubar (File Edit View etc.)

Rated 4 out of 5 stars (645)
212,182 users

Text Link

Allows URI texts written in webpages to be loaded by double clicks.

Rated 4 out of 5 stars (263)
208,196 users

Forecastfox Weather

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

Rated 4 out of 5 stars (1,025)
203,335 users

Print pages to Pdf Featured

Creates one Pdf from any amount of open Browsertabs,Bookmarks/-folder, Scrapbook(Plus) pages. This document can be archived, sended by e-mail or printed out with any standard Pdf Viewer.

Rated 4 out of 5 stars (243)
178,173 users

MeasureIt

Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.

Rated 4 out of 5 stars (327)
164,841 users

Personal Menu (Personal Firefox Button)

Bring back your personal and powerful Firefox Button!

Rated 4 out of 5 stars (404)
159,050 users

Status-4-Evar Featured

Status bar widgets and progress indicators for Firefox 4+

Rated 5 out of 5 stars (531)
152,817 users

Updated Ad Blocker for Firefox 11+

It blocks ads on the web pages you visit including Youtube, Hulu, TwitchTV/JustinTV, most Major News Sites(cnn/fox/nbc/msnbc) and many more. Ads from services like Google AdSense Yahoo DoubleClick It also blocks the GoogleAnalytics tracking script.

Rated 3 out of 5 stars (48)
152,001 users

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, Outlook.com and Yahoo Mail.

Rated 4 out of 5 stars (178)
151,788 users

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 (246)
143,570 users

Classic Compact Options

This add-on allows one to customize the theme "Classic Compact". Options include: 10 different toolbar button sets; turning off gradient backgrounds; OS scrollbars; dark system color support; merging menu bar into one menu button; etc.

Rated 4 out of 5 stars (54)
135,039 users