Featured Extensions

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FoxyProxy Standard 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 (356)
304,145 users

Copy Plain Text 2 Featured

Copies text without formatting

Rated 5 out of 5 stars (65)
51,925 users

Capture & Print No Restart Featured

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

Rated 5 out of 5 stars (51)
51,777 users

Integrated Inbox for Gmail and Google Apps No Restart Featured

Tired of having multiple tabs open just to view your favorite Google services and other Apps like Feedly, Evernote, Twitter and more? Now you can see them right from your Gmail Inbox.

Install now or visit www.integratedinbox.com for more info.

Rated 5 out of 5 stars (259)
14,627 users

Google Translate Anywhere No Restart Featured

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

Rated 4 out of 5 stars (21)
10,693 users

Fastest Search - Browse/Search Faster! No Restart Featured

Search/browse faster than ever! Ctrl-Shift-F for whole-word/regex/all tabs/diacritic search;Create custom engines;Select-n-search with Smart SearchBox;Preview results;Auto copy plain text, drag-n-drop save images/open links. http://y2u.be/gDlLrVZ54L0

Rated 5 out of 5 stars (159)
8,863 users

User-Agent Switcher No Restart Featured

Quickly and easily switch between popular user-agent strings.

Rated 4 out of 5 stars (20)
52,323 users

Reload Plus No Restart Featured

Supercharge your reload button and hotkeys!

Rated 5 out of 5 stars (80)
17,247 users

uMatrix No Restart 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 (82)
39,126 users

Addictive Typing Lessons Featured

Learn touch typing, or improve your typing.

Rated 4 out of 5 stars (23)
8,707 users

YouTube™ Flash-HTML5 No Restart Featured

Play YouTube™ Videos in Flash or HTML5 Player

Rated 5 out of 5 stars (13)
45,624 users

Tab Memory Usage No Restart Featured

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

Rated 4 out of 5 stars (27)
57,311 users

Classic Toolbar Buttons No Restart Featured

'Classic Toolbar Buttons' add-on restores old toolbar button ui (known from Fx 4-7s small view, Fx 4-12s large view & Tb 5-14) for current Firefox, Thunderbird and Seamonkey versions on Windows.

Beta builds on versions page!

Rated 5 out of 5 stars (150)
41,006 users

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 (195)
47,561 users

Wired-Marker Featured

Wired-Marker(http://www.wired-marker.org/en/) is a permanent (indelible) highlighter that you use on Web pages. The highlighter, which comes in various colors and styles, is a kind of electronic bookmark that serves as a guide when you revisit a Web ...

Rated 4 out of 5 stars (141)
15,727 users

Greasemonkey Featured

Customize the way a web page displays or behaves, by using small bits of JavaScript.

Rated 4 out of 5 stars (983)
1,341,939 users

Clean Links No Restart Featured

Converts obfuscated or nested links to genuine clean links.

Eg: http://somesite.com/?to=www.example.comhttp://www.example.com/

Rated 5 out of 5 stars (96)
45,103 users

Video Resumer No Restart Featured

Automatically resumes YouTube videos from where you played them last. Without this extension, for example, when you click through YouTube videos, back and forth, they always start from the beginning.

Rated 4 out of 5 stars (55)
17,041 users

Tab Scope Featured

Preview and navigate tab contents through popup.

Rated 4 out of 5 stars (465)
149,106 users

Nimbus Screen Capture - editable screenshots No Restart Featured

1) Screen capture web pages.
2) Selected regions.
3) Whole browser windows.
Edit screenshots and save the images to either local file or Google Drive. Annotate screenshots in a very user-friendly interface with different tools. Upload and share!

Rated 5 out of 5 stars (246)
135,713 users