Featured Extensions

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Adblock Plus No Restart Featured

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Rated 5 out of 5 stars (4,825)
18,640,971 users

Webmail Ad Blocker No Restart 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 (195)
105,384 users

SearchWP Featured

Jump-to-word buttons and highlighting for the search box content

Rated 5 out of 5 stars (143)
19,886 users

Clear Console Featured

One click to clear your cache, cookies, history, html5/local storage, http logins, all of them or restart your browser with/without notifications.

Rated 4 out of 5 stars (61)
28,945 users

Cleanest Addon Manager No Restart Featured

Cleanup your Addon Manager

Rated 5 out of 5 stars (137)
18,282 users

Add Google Search To New Tab Page Featured

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

Rated 4 out of 5 stars (27)
28,208 users

Google Translate, ImTranslator, Dictionary, TTS Featured

COMPLETELY REDESIGNED TRANSLATOR FOR FIREFOX
ImTranslator translates text, words, webpages between more than 90 languages.
NEW: Inline Translator, Dictionary, access to Google Translate, Microsoft Translator. Unique on the fly localization.

Rated 4 out of 5 stars (447)
308,718 users

YouTube Control Center No Restart Featured

YouTube Control Center is an open-source project that aims to enhance the overall YouTube experience by providing the end user with more control in what the playback process is concerned.

Rated 4 out of 5 stars (52)
14,509 users

YouTube™ Flash-HTML5 No Restart Featured

Play YouTube™ Videos in Flash or HTML5 Player

Rated 5 out of 5 stars (13)
43,561 users

Bloody Vikings! No Restart Featured

Simplifies the use of temporary e-mail addresses in order to protect your real address from spam. Supports inter alia 10minutemail.com and anonbox.net.

Rated 5 out of 5 stars (52)
12,957 users

Privacy Settings No Restart Featured

Alter Firefox's built-in privacy settings easily with a toolbar panel.

Rated 5 out of 5 stars (44)
16,815 users

Add to Search Bar No Restart Featured

Make any pages' search functionality available in the Search Bar (or "search box")...

Rated 5 out of 5 stars (641)
73,043 users

QuickJava Featured

Allows quick enable and disable of Java, Javascript, Cookies, Image Animations, Flash, Silverlight, Images, Stylesheets and Proxy from the Toolbar. This is great for increasing security or decreasing bandwidth.

Rated 5 out of 5 stars (203)
251,610 users

Reload Plus No Restart Featured

Supercharge your reload button and hotkeys!

Rated 5 out of 5 stars (80)
19,929 users

Screengrab (fix version) Featured

Screengrab! saves webpages as images.
0.99 released!
New features: upload to internet

Rated 5 out of 5 stars (315)
129,154 users

Mozilla Archive Format, with MHT and Faithful Save Featured

— Open web pages saved with Internet Explorer or other browsers (MHT)
— Save many tabs, video and audio reliably, in a single ZIP file (MAFF)
— Return to the original site you saved a page from, and more!

Rated 4 out of 5 stars (312)
151,932 users

KeeFox Featured

Simple and secure password management. Login automatically, never forget another password, stay in control of your passwords and improve their security. Powered by the world-renowned KeePass Password Safe.

Rated 5 out of 5 stars (1,173)
56,788 users

OmniSidebar No Restart Featured

Bring your bookmarks into view with just a gesture. Move the sidebar across the screen. Open a different sidebar by just clicking its title. And more! Keeps your sidebar simple and quick to access!

Rated 5 out of 5 stars (101)
21,969 users

uBlock Origin No Restart Featured

Finally, an efficient blocker. Easy on CPU and memory.

Rated 5 out of 5 stars (570)
1,230,356 users

Slim Add-ons Manager No Restart Featured

The Add-ons Manager slims down!
This add-on reduces the height of entries in the Add-on Manager, so you can display more of them at a time.

Rated 5 out of 5 stars (50)
8,929 users