Explore powerful tools and features to customize Firefox and make the browser all your own.
Block distracting websites when you are browsing the web. You can list websites that you don't want to visit in the settings. You can pause or turn off the blocker quickly. Completely open source.
View archived and cached versions of web pages on 10+ search engines, such as the Wayback Machine, Archive.is, Google, Bing, Yandex, Gigablast, WebCite, Sogou, Memento, Naver and Yahoo Japan.
a download manager with multi-threading support
Make the web faster, more private, and more secure.
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.
Tons of features to improve your user experience on YouTube™.
Spoofs User-Agent strings of your browser with a new one globally, randomly or per hostname
This is probably a laser cat add-on so you can shoot laser cat lasers at things.
Build, save and share beautiful Firefox themes.
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