The Mozilla officially released today the beta version of the fourth generation of the famous web browser developers, the Firefox. The Firefox 4 Beta is therefore to bring new features to the already successful and open source application, some of them are similar to those protoparousiasan other browsers, such as Chrome by Google.

For example, open tabs moved to the top (only available for Windows at this time) and the whole menu bar “disappears” under a single key. Meanwhile, Firefox 4 features a new system to protect against unexpected problems that can halt the functioning of the application as a plugin if you have a problem will end, and not the entire browser. New additions are also, among others, support HTML5 and WebM.

You can find all the changes / additions here and you can download the Firefox 4 Beta from here . Of course, it should be noted that the application is in testing phase and should be used with caution.