Top-Rated Extensions

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Dictionary (Google™ Translate) Anywhere Compatible with Firefox 57+

"Dictionary (Google™ Translate) Anywhere" extension provides access to a floating multilingual Google Translate panel on any webpage.

Rated 5 out of 5 stars (66)
13,366 users

Reverse Image Search Compatible with Firefox 57+

Adds an option to the context menu to search with an image on Google, Bing, Yandex, TinEye, SauceNAO, IQDB or a custom search engine. You can also choose more than one and they will be shown in a submenu!

Rated 5 out of 5 stars (12)
1,250 users

TabsInForeground

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

Rated 5 out of 5 stars (20)
1,375 users

PixelZoomer Compatible with Firefox 57+

PixelZoomer takes a screenshot of the current website and provides various tools for pixel analysis. You can zoom into websites (up to 3200%), measure distances and pick colors with an eye dropper.

Rated 5 out of 5 stars (24)
3,952 users

Copy ShortURL Compatible with Firefox 57+

Copy ShortURL lets you instantly create a short URL for web pages that you visit, so you can easily share links with friends.

Rated 5 out of 5 stars (28)
1,403 users

Fierr Requires Restart

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

Rated 5 out of 5 stars (48)
1,359 users

Resurrect Pages Compatible with Firefox 57+

Dead pages, broken links, the scourge of the internet. Powerhouse sites like Slashdot and Digg can bring a server to its knees. What do we do when a page is dead but we still want to see it? Call in the clerics, and perform a resurrection...

Rated 5 out of 5 stars (70)
11,877 users

Country Flags & IP Whois Compatible with Firefox 57+

Displays country flag of website's server location, Whois and Geo info on a browser addressbar icon

Rated 5 out of 5 stars (21)
2,079 users

ePN Cashback Plugin (Mobile) Compatible with Firefox 57+

Get cashback for every order in AliExpress, Ozon, ASOS, Banggood, GearBest, MVideo and Lamoda stores with ePN Cashback plugin

Rated 5 out of 5 stars (27)
188 users

Youku HTML5 Player Compatible with Firefox 57+

Farewell to flash and ads.

Rated 5 out of 5 stars (23)
2,117 users

Gesturefy Compatible with Firefox 57+

Customizable mouse gesture addon, which supports over 40 different actions.

Rated 5 out of 5 stars (17)
397 users

Speed Tweaks (SpeedyFox)

This extension provides a list to almost all the settings that you may need to alter in order to enhance Firefox's speed.

Rated 5 out of 5 stars (99)
28,149 users

Gutscheinaffe Compatible with Firefox 57+

JETZT in über 2.300 Onlineshops bares Geld sparen! Dieses Add-on enthält Gutscheincodes für über 2.300 Onlineshops in Deutschland und Österreich. Es informiert dich direkt beim Einkauf darüber, ob ein Gutschein oder eine Rabattaktion verfügbar ist.

Rated 5 out of 5 stars (17)
5,315 users

Social Fixer Compatible with Firefox 57+

Social Fixer for Facebook fixes annoyances, adds features, and enhances existing functionality to make FB more fun and efficient. Filter the news feed, hide sponsored posts and political posts, hide parts of the page you don't want to see, and more!

Rated 5 out of 5 stars (184)
10,919 users

Copy Profile

Copy your profile to the sdcard for easy debugging.

Rated 5 out of 5 stars (11)
281 users

Chrome UA on Google for Firefox Android Compatible with Firefox 57+

Sets the Useragent of Firefox Android to Chrome whilst browsing Google's search. This provides the more feature rich Webkit experience.

Rated 5 out of 5 stars (32)
624 users

Awesome RSS Compatible with Firefox 57+

Puts an RSS/Atom subscribe button back in URL bar

Rated 5 out of 5 stars (7)
65 users

Copy PlainText Compatible with Firefox 57+

Copy Plain Text without any formatting

Rated 5 out of 5 stars (7)
779 users

Spotify => Desktop

An addon to open spotify links in the desktop app instead of in the web player.

Rated 5 out of 5 stars (9)
861 users