Top-Rated Extensions

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Restart

"Restart" menu and button, with configurable shortcut key.

Rated 5 out of 5 stars (33)
12,390 users

uBlock Origin No Restart Featured

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

Rated 5 out of 5 stars (99)
80,391 users

Adblock Plus No Restart

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 (4,882)
20,863,847 users

Extension Auto-Installer No Restart

Extension Auto-Installer is a helper for Firefox/SeaMonkey/Thunderbird extension developers: it allows automatically adding or updating browser extensions, e.g. via command line tools. This makes testing your changes easier.

Rated 5 out of 5 stars (13)
3,794 users

lolifox - Fierr MOD

Replaces the error page with a lolifox appearance with additional features.

Rated 5 out of 5 stars (15)
4,254 users

Adblock Edge No Restart

Adblock Edge is a fork of the Adblock Plus version 2.1.2 extension for blocking advertisements on the web, without sponsored ads whitelist.

**This addon has been discontinued**

Rated 5 out of 5 stars (275)
767,809 users

FB Phishing Protector No Restart

Protects you from Phishing or Scams (through XSS injection attacks) while you're on Facebook™ - Version 4.2 introduces a Tracking Protection feature as well.

Rated 5 out of 5 stars (21)
40,127 users

Remote XUL Manager No Restart

Manages the Remote XUL whitelist to allow websites and local files to load XUL content.

Rated 5 out of 5 stars (34)
65,710 users

TabsInForeground No Restart

Always open Tabs in foreground. Use system back button to close again.

Rated 5 out of 5 stars (13)
2,363 users

Fierr

Replaces the error page with a more stylish appearance with additional features.

Rated 5 out of 5 stars (51)
3,163 users

Ghostery No Restart Featured

Protect your privacy. See who's tracking your web browsing and block them with Ghostery.

Rated 5 out of 5 stars (1,156)
1,454,381 users

GitHub Extension Installer No Restart

Install Browser Extensions straight from GitHub Repositories

Rated 5 out of 5 stars (8)
2,246 users

µBlock No Restart

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

Rated 5 out of 5 stars (189)
224,670 users

UnMHT No Restart

UnMHT allows you to view MHT (MHTML) web archive format files, and save complete web pages, including text and graphics, into a single MHT file in Firefox/SeaMonkey.

Rated 5 out of 5 stars (205)
90,801 users

Bluhell Firewall No Restart Featured

Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.

Rated 5 out of 5 stars (227)
139,818 users

I don't care about cookies No Restart

Get rid of annoying cookie warnings from tens of thousands of 'infected' websites!

Rated 5 out of 5 stars (26)
18,278 users

FoxTrick No Restart

Firefox extension for the popular Hattrick.org online football game.

It takes time for Mozilla to review updates thus this version might be out of date sometimes. The latest stable release can always be found on https://www.foxtrick.org/download

Rated 5 out of 5 stars (54)
11,505 users

Clean Links No Restart Featured

Converts obfuscated or nested links to genuine clean links.

Eg: http://somesite.com/?to=www.example.comhttp://www.example.com/

Rated 5 out of 5 stars (90)
37,676 users

Polskie Radio podcast download No Restart

Obsługa wbudowanego playera, aktualizuj: https://addons.mozilla.org/pl/firefox/addon/podcast-polskieradio/versions/0.9

Dodaje opcję pobierania (link "Pobierz") podcastów ze stron Polskiego Radia http://polskieradio.pl/ do plików MP3/FLV na dysk.

Rated 5 out of 5 stars (9)
1,374 users

Toggle animated GIFs No Restart

Start/stop GIF animations through a keyboard shortcut or by clicking them. You can also restart animations from the beginning, or disable animations by default.

Rated 5 out of 5 stars (43)
11,362 users