Explore powerful tools and features to customize Firefox and make the browser all your own.
Expand your email area by blocking and removing ads on the right hand side of the screen when using Gmail, Hotmail, Outlook.com and Yahoo Mail.
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.
Customizable mouse gesture add-on, which supports over 60 different commands and additional features like rocker and wheel gestures.
Shows previews of linked articles on Wikipedia pages.
Смарт Дефендер тебе поможет! Немедленно узнай следует ли доверять определенной странице или лучше ли её закрыть. Смарт Дефендер тебя предупредит!
Click to close any overlay popup on any website.
InlineDisposition Reloaded changes the disposition type of "Content-Disposition" response headers from "attachment" and "file" to "inline"
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!)