Some new features in Firefox 4:
* Use the new Java Script Engine that is JägerMonkey
* HTML5 (WebM Support for High Definition movie player)
* Support more complete CSS3 (Transitions, Rezising, Calc,-moz-any ())
* Hardware Accelerated Rendering support and Layered Page
* XPCOM module that makes the process much faster Startup
* Features WebScocket and Form Data
The installation process is very easy, and you do not need to worry because the installation of this beta will not overwrite the version of Firefox 3.6 is already installed on your computer.
If we are users of Windows 7 and have a computer with touch screen feature that is enabled for the computer used, this time Mozilla has come out with good news: Firefox version 4 Beta 3 has been released with support for touch screen for Windows 7.
This allows the user to be able to use their fingers to operate the browser with a touch of the screen, either to zoom in and out, moving images on the screen and much more.
Download Mozilla Firefox 4 Beta