Explore powerful tools and features to customize Firefox and make the browser all your own.
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!)
Make the web faster, more private, and more secure.
Build, save and share beautiful Firefox themes.
Strictly block all popup requests from any website by default. A notification window is opened to allow you accept, reject, open the popup in background page, or redirect the current page to popup address
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.
A secure and free password manager for all of your devices.
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.
Swiftly access your search engines in a popup panel when you select text in a webpage. Context menu also included!
Tranquility Reader improves the readability of web articles by removing unnecessary elements like ads, images, social sharing widgets, and other distracting fluff.
The best way to see the weather right in your browser. Easier than looking outside!
Remove tracking elements from URLs.
This is probably a laser cat add-on so you can shoot laser cat lasers at things.