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Google Translator for Firefox Requires Restart Featured

With this addon you can translate any text to your own language with one click or hot-key. You can either translate the selected text, this way the translated text will overwrite the original selected text, or you can translate the full page too.

Rated 4 out of 5 stars (351)
810,129 users

Web Developer Requires Restart Featured

The Web Developer extension adds various web developer tools to the browser.

Rated 5 out of 5 stars (246)
497,104 users

uMatrix Featured

Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc.

Rated 5 out of 5 stars (96)
40,079 users

Font Finder Requires Restart Featured

FontFinder is created for designers, developers and typographers. It allows a user to analyze the font information of any element on a page, copy any piece(s) of that information to the clipboard, and perform inline replacements to test new layouts.

Rated 4 out of 5 stars (71)
38,213 users

Lightbeam for Firefox Featured

Lightbeam is a Firefox add-on that enables you to see the first and third party sites you interact with on the Web. Using interactive visualizations, Lightbeam shows you the relationships between these third parties and the sites you visit.

Rated 4 out of 5 stars (421)
460,145 users

YouTube™ Flash-HTML5 Featured

Play YouTube™ Videos in Flash or HTML5 Player

Rated 5 out of 5 stars (16)
49,463 users

Dictionary (Google™ Translate) Anywhere Featured

"Dictionary (Google™ Translate) Anywhere" extension provides access to a floating multilingual Google Translate panel on any webpage.

Rated 4 out of 5 stars (33)
12,310 users

Add-ons Manager Context Menu Requires Restart Featured

Add more items to Add-ons Manager context menu.

Rated 5 out of 5 stars (37)
24,555 users

YouTube Anywhere Player Featured

Watch videos anywhere in cinema mode without leaving the website you're on.

Rated 5 out of 5 stars (63)
22,326 users

Download YouTube Videos as MP4 Featured

An extension that adds direct links to download YouTube videos as MP4 and FLV. It has a simple interface and it downloads videos directly from YouTube. The extension integrates with YouTube's interface and adds a download button below the player.

Rated 4 out of 5 stars (425)
1,113,489 users

Add Google Search To New Tab Page Requires Restart Featured

An extension that adds a Google search box to the standard Firefox new tab page

Rated 4 out of 5 stars (28)
29,044 users

FoxyProxy Standard Requires Restart Featured

FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.

Rated 4 out of 5 stars (361)
283,650 users

Capture & Print Featured

This add-on lets you print a webpage's area easily.

Rated 5 out of 5 stars (51)
48,423 users

ChatZilla Requires Restart Featured

A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.

Rated 4 out of 5 stars (125)
131,347 users

Torrent Tornado Requires Restart Featured

A Torrent Client for Firefox and SeaMonkey, runs everywhere, created in pure JavaScript without binary software!

Rated 5 out of 5 stars (79)
49,745 users

FireTube (Youtube Music Player) Featured

Listen to free, unlimited music with FireTube.
Simply search the artist or song of your choice and enjoy.

Take FireTube on-the-go with the Android app.

Rated 4 out of 5 stars (117)
16,846 users

Webmail Ad Blocker 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 (203)
108,184 users

Tab Memory Usage Featured

Tab Memory Usage displays the amount of memory is used by each tab

Rated 4 out of 5 stars (31)
39,878 users

Keyword Search Featured

Search in the address bar without changing your search engine.

Rated 5 out of 5 stars (86)
9,621 users

Facebook™ Disconnect Featured

Facebook™ Disconnect is an efficient firewall to disconnect third-party websites from accessing to your Facebook.

Rated 4 out of 5 stars (7)
28,374 users