Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
New Tab Override
New Tab Override allows you to set the page that shows whenever you open a new tab.
64,332 users
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.
10,649 users
Time Tracker - Web Habit Builder
Track time, analyze your habits and block addictive sites
10,514 users
SteamDB
Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.
96,120 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.
112,346 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
725,165 users
Clear Cache
Advanced cache clearing with time periods, current tab filter, and smart notifications. Perfect for developers and power users. F9 shortcut included!
64,165 users
Adaptive Tab Bar Color
Changes the color of Firefox theme to match the website’s appearance.
40,506 users
Tranquility Reader
Tranquility Reader improves the readability of web articles by removing unnecessary elements like ads, images, social sharing widgets, and other distracting fluff.
42,526 users
Grammar and Spell Checker - LanguageTool
With this extension you can check text with the 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.
415,753 users