Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
1 186 341 brukarar
AdGuard AdBlocker
Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.
1 078 649 brukarar
Simple Translate
Quickly translate selected or typed text on web pages. Supports Google Translate and DeepL API.
323 266 brukarar
YouTube High Definition
YouTube High Definition is a powerful tool that automatically plays all YouTube videos in HD, changes video player size, offers auto-stop and mute, and much more.
164 482 brukarar
Google Search Fixer
Override the user-agent string presented to Google Search pages to receive the search experience shown to Chrome.
126 652 brukarar
LeechBlock NG
LeechBlock NG is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.
70 490 brukarar
Tomato Clock
Tomato Clock is a simple browser extension that helps with online time management.
37 662 brukarar
SoundFixer
Helps you fix annoying sound problems on sites like YouTube: audio in one channel only, too quiet or too loud. (Unfortunately, this extension does not work on all websites because of cross-domain issues — but it does work on YouTube!)
34 460 brukarar
Tampermonkey
Tampermonkey is the world's most popular userscript manager.
712 038 brukarar
I don't care about cookies
Get rid of cookie warnings from almost all websites!
335 860 brukarar
Greasemonkey
Customize the way a web page displays or behaves, by using small bits of JavaScript.
201 442 brukarar
Absolute Enable Right Click & Copy
Force Enable Right Click & Copy
91 342 brukarar
Cookie Quick Manager
An addon to manage cookies (view, search, create, edit, remove, backup, restore, protect from deletion and much more). Firefox 57+ is supported.
66 337 brukarar
User-Agent Switcher
Easily override the browser's User-Agent string
63 345 brukarar
Popup Blocker Ultimate
Best Pop-up Blocker for Firefox. (Best in Rating, Performance, This addon does NOT collect user's data same as Poper Blocker)If your Firefox version is not 57+ please install version 8.1 from Official website.
62 505 brukarar
Adblock for Youtube™
Popular Adblock for Youtube™ Extension: Removes the video ads from Youtube™. Thanks to all AdBlock supporters!
50 598 brukarar
RESTClient, a debugger for RESTful web services.
RESTClient has been completely rewritten for compatible with Firefox 57. Some functions are still missing (OAuth & OAuth 2.0 authentication).
36 122 brukarar
Mate Translate – translator, dictionary
Your all-in-one translator for web pages, highlighted text & Netflix subtitles. Translate and learn words in 103 languages.
35 951 brukarar
Youtube Audio
Stream just the audio from YouTube to save bandwidth and battery life
32 596 brukarar
uBlacklist
Blocks sites you specify from appearing in Google search results
32 076 brukarar
h264ify
Makes YouTube stream H.264 videos instead of VP8/VP9 videos
26 433 brukarar
10ten Japanese Reader (Rikaichamp)
Quickly translate Japanese by hovering over words. Formerly released as Rikaichamp.
22 372 brukarar
BlockTube
YouTube™ Content Blocker Block channels and videos from YouTube™ Fast and easy
19 282 brukarar
Impulse Blocker
Block distracting websites. Just list the sites you want Impulse Blocker to pause or completely avoid.
17 166 brukarar
Redirector
Automatically redirects to user-defined urls on certain pages
16 944 brukarar