Featured Extensions

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Keyword Search Featured

Search in the address bar without changing your search engine.

Rated 5 out of 5 stars (91)
8,376 users

BetterPrivacy-signed Requires Restart Featured

Control a new, trickier kind of cookie, better known as an LSO or Flash cookie. The BetterPrivacy safeguard offers various ways to handle Flash-cookies created by webpages with the help of your Flash plug-in...

Rated 5 out of 5 stars (456)
433,014 users

Reload Plus Featured

Supercharge your reload button and hotkeys!

Rated 5 out of 5 stars (85)
20,316 users

ipFood Requires Restart Featured

Simulate the use of a series of proxy changing at each new connection.

Rated 4 out of 5 stars (7)
63,320 users

Tab Groups Featured

Tab Groups are an easy way to organize a lot of tabs. You can visually group related tabs, switch between groups, and quickly search through all of your tabs to switch to a specific one.

Rated 5 out of 5 stars (693)
106,052 users

Adblock Plus 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 (5,027)
18,520,772 users

Webmail Ad Blocker 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 (219)
87,248 users

FireSSH Requires Restart Featured

FireSSH is a free, cross-platform SSH terminal client for Mozilla Firefox. Written entirely in Javascript!

Rated 4 out of 5 stars (95)
29,048 users

Font Finder Requires Restart Featured

FontFinder is created for designers, developers and typographers. It allows a user to analyze the font information of any element on a page, copy any piece(s) of that information to the clipboard, and perform inline replacements to test new layouts.

Rated 4 out of 5 stars (78)
34,022 users

MailtoWebmails Featured

Tool for managing the default action when you click a "mailto:" link. Specializing in sharing details for Webmail services.

Rated 5 out of 5 stars (14)
5,219 users

Prevent Tab Overflow Featured

Make sure your tabs stay visible all the time.

Rated 5 out of 5 stars (65)
10,988 users

FindBar Tweak Featured

Between simple tweaks such as placing the findbar in the top corner, to the powerful "Find in All Tabs" tool, it has everything to make the Find Toolbar a powerful and accessible research tool!

Rated 5 out of 5 stars (319)
32,215 users

New Tab Tools 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 (240)
44,847 users

Emoji Cheatsheet Featured

A reference for the codes to generate Emojis on popular sites like GitHub or Basecamp and Unicode characters for Twitter and Facebook.
Search Emojis by name or view recently selected items. Emojis are automatically copied to the clipboard.

Rated 4 out of 5 stars (40)
72,007 users

YouTube Enhancer Plus Requires Restart Featured

Improve your watching experience! Ad Blocker, Autoplay Manager, Auto HD, Auto Replay, Cinema Mode, and more.

Rated 5 out of 5 stars (125)
53,741 users

Ecosia — The search engine that plants trees! Featured

Ecosia is a search engine that donates 80% of its surplus income to planting trees. By searching with Ecosia you can help the environment for free.
This extension adds Ecosia.org as the default search engine to your Firefox. Give it a try!

Rated 5 out of 5 stars (146)
228,148 users

Gmail™ Notifier (restartless) Featured

Multiple account (or label) Gmail notifier (without storing passwords)

Rated 4 out of 5 stars (288)
92,369 users

History Submenus II Featured

Add sub-menus to History Menu for previous days' history.

Rated 5 out of 5 stars (49)
4,261 users

Copy Plain Text 2 Requires Restart Featured

Copies text without formatting

Rated 5 out of 5 stars (82)
41,797 users