Open-source Web browser,Â Firefox 4 downloaded 21823558Â Times Till Now . Â It downloaded around 5 million times in its first 24 hours.
TheÂ latest version of Firefox features full support for emerging coding language HTML 5, tabs for apps, a redesigned user interface and a feature that helps users organize tabs for the websites they visit frequently.
It also includes a “do not track” feature, designed to tell sites you visit that you don’t want to be tracked for advertising purposes. The sites still have to comply for it to work.