Firefox 4.0 Beta 1 has been released to the public today with many new features. The new features include ehanced security, higher performance, add-on manager, 3D rendering support, HD Video and HTML5 support. There are a few new visual changes as for the tabs are always on top now but nothing to major as they prepare to battle with Chrome and other browsers for the market. As Firefox appears to taken some of the ideas from Chrome with the slim down modern look - it is something worth using.