Most Popular Extensions

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RequestPolicy Requires Restart

Be in control of which cross-site requests are allowed. Improve the privacy of your browsing by not letting other sites know your browsing habits. Secure yourself from Cross-Site Request Forgery (CSRF) and other attacks.

Rated 4 out of 5 stars (230)
82,443 users

Google Scholar Button

Lookup scholarly articles as you browse the web.

Rated 4 out of 5 stars (11)
82,365 users

Save as PDF Requires Restart

Lets you download web pages as PDF in one click.

Rated 2 out of 5 stars (130)
81,736 users

All-in-One Gestures Requires Restart

This extension allows you to execute common commands using mouse gestures, rocker navigation, scroll wheel navigation and page...

Rated 4 out of 5 stars (432)
81,456 users

Google™ Translator Featured

Google™ Translator is a handy multi-language translator built on top of Google Translate. It gives you Google Translate UI feel right on your Firefox toolbar.

Rated 4 out of 5 stars (130)
81,436 users

HttpFox Requires Restart

An HTTP analyzer addon for Firefox

Rated 4 out of 5 stars (168)
81,359 users

AdBlocker Lite

block ads seamlessly on popular websites

Rated 4 out of 5 stars (30)
81,271 users

Click&Clean Requires Restart

The quick and easy way to delete your browsing history, erase all temporary internet files, remove downloaded files history, cookies, Flash LSO, typed URLs. Allows to delete private data when Firefox closes. Supported ext. tools like CCleaner.

Rated 5 out of 5 stars (99)
80,886 users

YouTube™ AdBlocker

YouTube™ AdBlock removes all sorts of advertisement from YouTube

Rated 4 out of 5 stars (13)
80,355 users

Forecastfox Weather Requires Restart

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 (1,042)
80,149 users

Ad-Aware Ad Block

Ad-Aware Ad Block improves your browser’s speed and protects your privacy by blocking ads and trackers. It also improves online security by blocking malicious URLs and establishing the most secure connection available.

Rated 4 out of 5 stars (7)
79,424 users

IE Tab + (FF 8+, 7, 6, 5, 4, 3.6, 3.5, SeaMonkey) Requires Restart

IE Tab + is an enhanced version of IE Tab. It supports FF 3.5 or greater, integrates IE Tab with Adblock Plus in the IE Tab engine, and synchronizes cookies between IE and Firefox. You can easily import settings from the original IE Tab into IE Tab +

Rated 3 out of 5 stars (87)
78,909 users

Bitdefender QuickScan Requires Restart

The quickest way to find out if your computer is infected!
Bitdefender QuickScan is a very fast antivirus scanner, able to determine in a matter of seconds if a system is infected with malware.
More on http://quickscan.bitdefender.com/faq

Rated 4 out of 5 stars (60)
78,650 users

Youtube Mp3 Downloader

Youtube Mp3 Downloader is one of the fastest and safe services for downloading and conveting files from the popular video hosting link to mp3.

Rated 4 out of 5 stars (55)
78,370 users

ImgLikeOpera Requires Restart

ImgLikeOpera allows load only the images that you want in Firefox browser. This extension is very useful for non broadband users...

Rated 4 out of 5 stars (365)
78,152 users

SkipScreen -- download helper, now for sale... Requires Restart

We’re sorry to say we can’t maintain Skipscreen anymore. We’d love to see someone carry on with it. If you’d like to buy Skipscreen, or otherwise find it a good home, please contact us at admin@worcesterllc.com.

Rated 4 out of 5 stars (631)
77,793 users

Pushbullet

Pushbullet enables you to see your calls and texts on your computer and easily send links and files from your computer to phone.

Rated 3 out of 5 stars (158)
77,495 users

RefControl Requires Restart

Control what gets sent as the HTTP Referer on a per-site basis.

Rated 4 out of 5 stars (185)
76,199 users

Zoom Page Requires Restart

Full featured zoom manager with independent page and image zoom modes. Choose from four zoom modes: Default Zoom, Fit-To-Width, Default Zoom + Site Specific or Fit-To-Width + Site Specific. Button style and zoom levels are fully configurable.

Rated 5 out of 5 stars (157)
76,174 users

PDF Download Requires Restart

Use PDF Download to do whatever you like with PDF files on the Web. Regain control and eliminate browser problems, view PDFs directly in Firefox as HTML, and use the all-new Web-to-PDF toolbar to save and share Web pages as high-quality PDF files.

Rated 2 out of 5 stars (688)
76,129 users