Top-Rated Extensions

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Google Music Keys Requires Restart

Adds hotkey support for Google Music in Firefox.

Rated 3 out of 5 stars (4)
10 users

SneakPeek

Quickly preview web pages before opening them by shift+click instead of click. This overrides the "open in new window" behavior of shift+click.

Demo video: http://blog.abhinavsharma.me/have-screen-will-browse-without-tabs

Rated 3 out of 5 stars (4)
55 users

Grooveshark Proxy Requires Restart

Unlocks Grooveshark through a proxy to use grooveshark.com in Germany.

Rated 3 out of 5 stars (4)
421 users

Troll Faces for Facebook Chat Requires Restart

Troll Faces add-on will include popular Troll Faces in to Facebook chat smileys panel. So you can easily use Troll Faces while chatting with Facebook friends.

Rated 3 out of 5 stars (4)
102 users

nogoogle

Follow google link results without going through google

Rated 3 out of 5 stars (4)
345 users

Facebook Shared With Fixer

Add "and the NSA" to the Facebook's Shared With tooltips (see screenshot).

Rated 3 out of 5 stars (4)
10 users

Hash Password Generator Requires Restart

Generates different passwords for each website using a choice of multiple algorithms.

Rated 3 out of 5 stars (4)
252 users

Clipboard Plus

Allows you to keep adding text to the clipboard so you don't have to highlight consecutively.

Rated 3 out of 5 stars (4)
325 users

counterfeit.io

To know if this web site is susceptible of selling imitations.

Rated 3 out of 5 stars (12)
1,329 users

TweakTube - YouTube Enhancer / Video Downloader Requires Restart

The Ultimate YouTube Enhancer! Instantly add many tweaks to YouTube including: Download Videos, Convert Videos to Mp3, Automatically Watch in HD, Change YouTube Style, Watch Multiple Videos, Loop Videos, and much more. A must have for YouTube users.

Rated 3 out of 5 stars (47)
7,684 users

Bandwidth Meter and Diagnostics Requires Restart

This extension includes a set of tools for broadband users. It can measure the bandwidth of Internet connections and perform diagnostic tests (ping, traceroute etc)

Rated 3 out of 5 stars (19)
1,280 users

YouTube Videos Download in one click Requires Restart

Download YouTube videos by clicking a button underneath videos in YouTube. Save YouTube videos and songs in 1080p (HD) MP4 or FLV format.

Rated 3 out of 5 stars (19)
1,404 users

SmartPrint Requires Restart

A paper-saving extension capable of revolutionizing the way that documents are printed.

Rated 3 out of 5 stars (11)
4 users

Kitco Spot Gold Price Watcher Requires Restart

This extension retrieve the Bid and Ask price of Spot Gold from Kitco's...

Rated 3 out of 5 stars (11)
3 users

YouTube HTML5 Switch

Turn the default YouTube player into an HTML5 player with one click. A simple add-on that adds "&html5=1" in the URL for your convenience.

Rated 3 out of 5 stars (11)
2,558 users

FirePreview Requires Restart

Shows a small window with the preview of the link's website when you move your mouse over a link and press CTRL.

Rated 3 out of 5 stars (7)
226 users

SmartWhois Launcher

This extension allows you to launch SmartWhois and perform a Whois query on the current URL. SmartWhois is a useful network information utility that allows you to look up all the available information about an IP address, hostname or domain...

Rated 3 out of 5 stars (7)
243 users

Full Session History Requires Restart

Makes recent pages dropdown list next to back/forward buttons show all history of the current tab instead of only a few.

Rated 3 out of 5 stars (7)
152 users

Belgium eID Requires Restart

Use the Belgian electronic identity card (eID) in Firefox

Rated 3 out of 5 stars (95)
244,958 users

Priv3 Requires Restart

WARNING: This add-on is not being maintained anymore.
The newer and more generalized version: Priv3+

Rated 3 out of 5 stars (20)
3,397 users