Extensions
Explore powerful tools and features to customise Firefox and make the browser all your own.
Easy Youtube Video Downloader Express
A simple extension for superfast and easy YouTube downloads in FLV, 3GP, MP3, MP4, 720p, and 1080p formats.
349,922 users
Dark Background and Light Text
Make every web page (or just the pages you want) display light text on dark backgrounds. All color variations are fully customizable.
24,442 users
Time Tracker - Web Habit Builder
Track time, analyze your habits and block addictive sites
17,852 users
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.
107,001 users
SteamDB
Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.
108,741 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
734,546 users
Stylus
Redesign your favourite websites with Stylus, an actively developed and community driven user-style manager. Easily install custom themes from popular online repositories, or create, edit, and manage your own personalised CSS stylesheets.
125,279 users
Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
429,680 users
Read Aloud: A Text to Speech Voice Reader
Read out loud the current web-page article with one click. Supports 40+ languages.
208,338 users