Mozilla has released new Firefox 4 (beta). The Firefox 4 Beta includes the Feedback Add-on which includes you in user studies. No data will be sent to Mozilla without your permission.
New Add-Ons Manager
An easier way to manage your add-ons and discover new options for personalizing your browsing.
WebM and HD Video
As pioneers of HTML5 video standards, Firefox also supports the WebM format so you can watch open HD quality video.
Protecting Your Privacy
Firefox puts your privacy first, fixing flaws in some web standards that allow bad guys to snoop around and expose your browser history.