Featured Extensions

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User Agent Switcher Featured

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Rated 4 out of 5 stars (242)
392,453 users

Greasemonkey Featured

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

Rated 4 out of 5 stars (949)
1,299,226 users

BugMeNot No Restart Featured

Bypass compulsory web registration with the context menu via www.bugmenot.com.

Rated 4 out of 5 stars (222)
43,304 users

YouTube Video and Audio Downloader No Restart Featured

Downloads YouTube videos in all available formats (FLV, MP4, WebM, and 3GP) with video quality of your choice. It also contains a pure JavaScript library to extract the ORIGINAL audio file embedded in video files.

Rated 4 out of 5 stars (258)
649,888 users

QuickMark No Restart Featured

A quick and minimalistic way to create bookmarks.

Rated 5 out of 5 stars (38)
8,379 users

Print Edit Featured

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.

Rated 5 out of 5 stars (262)
105,197 users

The Fox, Only Better No Restart Featured

Australis, the new Firefox theme, made a great browser look awesome. And now it will also feel awesome using it!

Rated 5 out of 5 stars (214)
45,946 users

Multifox No Restart Featured

An extension that allows Firefox to connect to websites using different user names. Simultaneously.

*** Multifox 3.2.1 available *** Get from https://getmultifox.com/ while Mozilla does not review it

*** Multifox 2 users: try the "Window Mode"

Rated 4 out of 5 stars (75)
64,667 users

TinyURL Generator Featured

An extension to silently generate a TinyURL for your current page at the click of a button. Also shows you where TinyURLs on the web will take you.

Rated 5 out of 5 stars (74)
25,059 users

YouTube Unblocker No Restart Featured

Watch blocked YouTube videos – YouTube proxy-server, only if needed!

✓ free unblocking of YouTube videos /-search
✓ unblock embedded videos (e.g. Facebook)
✓ unblocking via proxy (no VPN)
✓ fast unblocking + fast streaming (HD)
✓ totally legal

Rated 4 out of 5 stars (117)
254,177 users

Converter Featured

Contextual (inline) unit, timezone, and currency converter on any web site, plus custom conversions for offline text. Shopping assistant also included -- find the best deals online! (Currency conversions and shopping assistant disabled by default.)

Rated 5 out of 5 stars (73)
10,984 users

Classic Retweet No Restart Featured

Old school retweets for Twitter.

Rated 4 out of 5 stars (25)
3,453 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 (263)
19,972 users

Video WithOut Flash No Restart Featured

Watch videos without flash

Rated 4 out of 5 stars (50)
71,912 users

Save Text To File No Restart Featured

Saves highlighted text to a file in the specified directory

Rated 5 out of 5 stars (86)
31,759 users

Reader No Restart Featured

Reader is the ultimate Reader tool for Firefox.

Rated 5 out of 5 stars (56)
33,745 users

DownThemAll! Featured

The first and only download manager/accelerator built inside Firefox!

Rated 5 out of 5 stars (1,572)
1,421,161 users

Toolbar Buttons No Restart Featured

Adds toolbar buttons to the customize toolbar window in several programs including Firefox, Thunderbird and SeaMonkey. Some of the buttons make commonly preformed actions quicker, others add new functionality.

Rated 4 out of 5 stars (315)
139,731 users

Pearltrees No Restart Featured

Pearltrees lets you organize all your interests.

Rated 5 out of 5 stars (244)
27,242 users

Download Manager (S3) Featured

View and manage downloads from a tidy statusbar

This is a new life in Firefox 26+ for old well-known addon Download Statusbar

New Features: Replace Downloads Library page.
Now you have full control of your downloads history!

Rated 5 out of 5 stars (239)
116,148 users