Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
FoxClocks
FoxClocks shows times around the world - or just your local time - at the bottom of your browser. It deals with daylight saving time so you don't have to.
11,044 users
Yomitan
Powerful and versatile pop-up dictionary for language learning used by 100,000+ language learners.
29,470 users
SingleFile
Save an entire web page—including images and styling—as a single HTML file.
83,385 users
automaticDark - Time-Based Theme Changer
Automatically change Firefox's theme based on the time.
13,425 users
Time Tracker - Web Habit Builder
Track time, analyze your habits and block addictive sites
10,352 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.
113,784 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
720,919 users
SteamDB
Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.
93,045 users
Notefox: websites notes
Take notes on every website in a smart and simple way!
3,315 users
Image Max URL
Finds larger/original versions of images (supporting 10,000+ websites), including a powerful media popup feature
6,741 users
Sink It for Reddit
Upgrade your Reddit experience with color coded comments, easier nav, sub-reddit blocking, gestures for upvoting, ad+nag blocking, and more. It's like RES, for mobile!
5,032 users
Show Video Controls for Firefox
Automatically enables video controls when playing html webm videos.
3,096 users