In a few tests, Firefox 4 Beta 7 is approximately three times faster than the current Firefox 3.6.12. (Mozilla claimed that Google V8’s results indicated that Firefox 3.6.12 was five times slower than Firefox 4 Beta 7) The Firefox 4 in Beta 7 supports hardware acceleration (in both Mac OS X and Windows), OpenType font format and WebGL 3D graphics standard.
Mozilla will also offer now acceleration aspects of page composition and content rendering when running in Windows OSs and also in Mac OS X. Browser hardware acceleration feature makes it possible to shift some tasks from the CPU to the GPU to distribute load and boost performance, particularly for graphics-intensive tasks like rendering video or complicated three-dimensional objects. If Microsoft offers hardware acceleration with Internet Explorer 9, which relies heavily on the Direct3D API to boost page composition in Windows environment, Mozilla, however, moves one step further by accelerating page composition. Microsoft’s IE9 is not supported in Windows XP due to the lack of support Direct2D, which is needed to boost content rendering.