Dark Reader
Mörkt läge på alla webbplatser. Ta hand om dina ögon och använd ett mörkt tema för att surfa på natten och dagen.
1 178 273 användare
AdGuard AdBlocker
Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.
1 071 659 användare
Simple Translate
Quickly translate selected or typed text on web pages. Supports Google Translate and DeepL API.
320 082 användare
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.
163 998 användare
Google Search Fixer
Override the user-agent string presented to Google Search pages to receive the search experience shown to Chrome.
126 491 användare
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.
70 044 användare
Tomato Clock
Tomato Clock is a simple browser extension that helps with online time management.
37 300 användare
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!)
34 284 användare
Tampermonkey
Tampermonkey is the world's most popular userscript manager.
706 758 användare
I don't care about cookies
Get rid of cookie warnings from almost all websites!
332 203 användare
Greasemonkey
Customize the way a web page displays or behaves, by using small bits of JavaScript.
199 773 användare
Absolute Enable Right Click & Copy
Force Enable Right Click & Copy
90 285 användare
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.
65 495 användare
User-Agent Switcher
Easily override the browser's User-Agent string
62 569 användare
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.
62 253 användare
Adblock for Youtube™
Popular Adblock for Youtube™ Extension: Removes the video ads from Youtube™. Thanks to all AdBlock supporters!
50 075 användare
Mate Translate – translator, dictionary
Your all-in-one translator for web pages, highlighted text & Netflix subtitles. Translate and learn words in 103 languages.
35 579 användare
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).
35 057 användare
Youtube Audio
Stream just the audio from YouTube to save bandwidth and battery life
32 299 användare
uBlacklist
Blocks sites you specify from appearing in Google search results
31 911 användare
h264ify
Makes YouTube stream H.264 videos instead of VP8/VP9 videos
26 206 användare
10ten Japanese Reader (Rikaichamp)
Quickly translate Japanese by hovering over words. Formerly released as Rikaichamp.
22 239 användare
BlockTube
YouTube™ Content Blocker Block channels and videos from YouTube™ Fast and easy
19 210 användare
Impulse Blocker
Block distracting websites. Just list the sites you want Impulse Blocker to pause or completely avoid.
17 063 användare
Redirector
Automatically redirects to user-defined urls on certain pages
16 748 användare