Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
NoScript Security Suite
The best security you can get in a web browser! Allow potentially malicious web content to run only from sites you trust. Protect yourself against XSS other web security exploits.
343,325 users
Improve YouTube! (Open-Source for YouTube)
Make YouTube tidy & powerful! YouTube Player Size Theme Quality Auto HD Colors Playback Speed Style ad block Playlist Channel H.264
7,814 users
Swift Selection Search
Swiftly access your search engines in a popup panel when you select text in a webpage. Context menu also included!
11,050 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
172,543 users
Unhook: Remove YouTube Recommended Videos Comments
Hide YouTube related videos, comments, video suggestions wall, homepage recommendations, trending tab, and other distractions.
17,939 users
Decentraleyes
Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.
235,789 users
Bitwarden - Free Password Manager
A secure and free password manager for all of your devices.
474,801 users
GIPHY for Firefox
Bring the power of a GIF search engine anywhere on the web. Respond to emails, tweets and more with GIFs quickly and easily. Add GIPHY GIFs to your Gmail, Facebook, Twitter and more. Just search, drag and drop or right click!
9,224 users
automaticDark - Time-Based Theme Changer
Automatically change Firefox's theme based on the time.
4,401 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.
39,520 users
Improve YouTube! (Open-Source for YouTube)
Make YouTube tidy & powerful! YouTube Player Size Theme Quality Auto HD Colors Playback Speed Style ad block Playlist Channel H.264
7,814 users