Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
Undo Close Tab
Allows you to restore the last closed tab with just one button click and gives you access to the list of recently closed tabs in the button context menu.
35,197 users
ScrollAnywhere
Scroll page without touching scroll-bar! Press Middle (Right / Left) mouse button anywhere on the page to your scroll page just like with scrollbar. Scroll Anywhere features also: - "grab and drag" scrolling - The Momentum auto-scroll
5,942 users
FoxyTab
Collection of Tab Related Actions e.g. Duplicate, Close Duplicates, Close to the Left, Copy Title, Merge Windows, Save as PDF, Copy Urls Tab/All/Left/Right, Host keep/close/close other, Sort by URL/Title, Asce/Desc, Move, Reload, Reload Timer
15,669 users
SoundFixer
Lets you fix annoying sound problems in YouTube videos and such. Like audio in one channel only, too quiet or too loud. (Unfortunately, doesn't work on many other websites because of cross-domain issues — but it does work on YouTube.com!)
18,343 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.
212,428 users
Bitwarden - Free Password Manager
A secure and free password manager for all of your devices.
138,005 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.
30,509 users
User-Agent Switcher and Manager
Spoofs User-Agent strings of your browser with a new one globally, randomly or per hostname
342,916 users
Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
242,547 users
Image Search Options
Image Search Options provides a set of highly customizable reverse image search context menu options.
58,789 users
LASER CAT
This is probably a laser cat add-on so you can shoot laser cat lasers at things.
3,623 users