Mozilla today released first public beta of Firefox 4.0, its free open source web browser. The new Firefox 4.0 is based on the Gecko 2.0 web platform.
Firefox 4.0 beta comes with many new features like new tab location like Google Chrome, new add-ons manager, support for WebM format to watch HD video, enhanced privacy, new html 5 parser, jetpack SDK etc.
At present Firefox 4 beta is available only for Windows but mozilla will soon release Mac and Linux versions.
Mozilla Firefox 4.0 Beta can be downloaded here