Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
uBlock Origin
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
11,116,746 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.
68,337 users
Clear Browsing Data
Delete browsing data directly from the browser toolbar. Clear cookies, history and cache with a single click.
44,905 users
Image Search Options
A customizable reverse image search tool that conveniently presents a variety of top image search engines.
34,405 users
Time Tracker - Web Habit Builder
Track time, analyze your habits and block addictive sites
19,244 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.
110,822 users
YouTube Tweaks
A collection of tweaks for hiding Shorts, disabling 'Video paused. Continue watching?', changing the number of videos per row and more!
15,107 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
786,072 users
Weather Extension
Weather at a glance in Firefox: toolbar temperature, hourly and daily forecasts, radar, eight themes, and optional Weather Pro features.
24,567 users
Yomitan
Powerful and versatile pop-up dictionary for language learning used by 100,000+ language learners.
44,966 users
Easy Youtube Video Downloader Express
A simple extension for superfast and easy YouTube downloads in FLV, 3GP, MP3, MP4, 720p, and 1080p formats.
399,715 users
Media Downloader Unleashed!!
Detect and download 🎬 videos, 🎥 streams, 🎵 audio and other files from your browser! Compatible with .m3u8, .mpd, .mp4, .mp3, .ogg and many more formats and websites! Completely free, open-source!
13,663 users