Extensions
Explore powerful tools and features to customise Firefox and make the browser all your own.
Undo Close Tab
Allows you to restore the tab you just closed with a single click—plus it can offer a list of recently closed tabs within a convenient context menu.
43,313 users
Clear Cache
Advanced cache clearing with time periods, current tab filter, and smart notifications. Perfect for developers and power users. F9 shortcut included!
55,664 users
SteamDB
Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.
85,796 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.
107,628 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
674,803 users
Privacy Badger
Automatically learns to block hidden trackers. Made by the leading digital rights nonprofit EFF to stop companies from spying on you.
1,799,645 users
Time Tracker - Web Habit Builder
Track time, analyze your habits and block addictive sites
1,154 users
Power Thesaurus
Use the power of synonyms by button in toolbar, right-click or by word selection on any page.
1,405 users
Chrome Mask
Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise.
47,516 users
PhotoShow
Hover to zoom and view high-definition images. Instantly enlarge visuals, crafted for all your favourite websites—and for you.
12,856 users