“Mozilla has announced the availability of Firefox 4 beta 7, a
prerelease build for users who want to help test the next major
version of the popular open source Web browser. It includes
JaegerMonkey, Mozilla’s enhanced JavaScript engine.“During our tests of the new beta, we were consistently
impressed by its outstanding performance and greatly improved
responsiveness. It delivers highly competitive performance and puts
Firefox back on an even footing with its rivals. The beta also
brings the Firefox 4 theming overhaul to Linux, including the new
tab position above the address bar.“Windows and Mac OS X users will find that WebGL is enabled by
default with supported hardware. Intel graphics hardware isn’t
supported yet, but will be in the future. Linux users can expect to
see WebGL enabled by default in a future beta release.
Hardware-accelerated rendering, which is used for certain graphical
operations, is working with Direct3D on Windows and OpenGL on Mac
OS X.”