Explore powerful tools and features to customize Firefox and make the browser all your own.
An addon to manage cookies (view, search, create, edit, remove, backup, restore, protect from deletion and much more). Firefox 57+ is supported.
43 910 users
Offline P2P encrypted password manager & authenticator. Auto-fill Two-Factor Authentication (2FA) tokens.
3 161 users
With this extension you can check text with the free 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.
65 750 users
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.
248 117 users
A secure and free password manager for all of your devices.
172 489 users
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.
33 705 users
Swiftly access your search engines in a popup panel when you select text in a webpage. Context menu also included!
13 898 users
The best way to see the weather right in your browser. Easier than looking outside!
29 709 users
This is probably a laser cat add-on so you can shoot laser cat lasers at things.
5 735 users
Tranquility Reader improves the readability of web articles by removing unnecessary elements like ads, images, social sharing widgets, and other distracting fluff.
7 292 users