AdGuard AdBlocker
Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.
1,051,351 users
Grammar and Spell Checker - LanguageTool
With this extension you can check text with the free style and grammar checker LanguageTool. It finds many errors that a simple spell checker cannot detect, like mixing up there/their, a/an, or repeating a word.
344,678 users
Forecastfox (fix version)
Get international weather updates (via AccuWeather.com) displayed right in Firefox with this highly customizable extension.
18,212 users
Web Archives
View archived and cached versions of web pages on 10+ search engines, such as the Wayback Machine, Archive․is, Google, Bing and Yandex
57,840 users
802,193 users
524,110 users
460,612 users
SteamDB
Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.
50,159 users
Augmented Steam
Augments your Steam Experience
53,090 users
Steam URL Opener
Allows you to open URLs inside Steam Client to save the hassle of logging in normal browser (with a single click on a button).
4,656 users
ProtonDB for Steam
Shows ratings from protondb.com on Steam
3,083 users
3,674 users
5,154 users
AdBlocker for YouTube™
Remove all annoying ads from YouTube.
457,796 users
Enhancer for YouTube™
Take control of YouTube and boost your user experience!
562,701 users
SponsorBlock - Skip Sponsorships on YouTube
Easily skip YouTube video sponsors. When you visit a YouTube video, the extension will check the database for reported sponsors and automatically skip known sponsors. You can also report sponsors in videos. Other browsers: https://sponsor.ajay.app
434,521 users
YouTube NonStop
Tired of getting that "Video paused. Continue watching?" confirmation dialog? This extension autoclicks it, so you can listen to your favorite music uninterrupted. Working on YouTube and YouTube Music!
130,103 users
Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
1,161,917 users
Enhancer for YouTube™
Take control of YouTube and boost your user experience!
562,701 users
Block Site
A customizable, password-protected website blocker and redirector.
71,128 users
Turn Off the Lights for Firefox
The entire page will be fading to dark, so you can watch the videos as if you were in the cinema. Works for YouTube and Beyond. Dark mode for all websites. It works for all known video sites such as YouTube, Vimeo, Twitch, Dailymotion, Facebook, etc.
42,566 users