Updated: Fedora was right in the middle of announcing all this properly, so here is the updated item containing the official names. Videos included, as well as the inevitable 'Why not Xgl?'.
"AIGLX is a project that aims to enable GL-accelerated effects on a standard desktop. We have a lightly modified X server (that includes a couple of extensions), an updated Mesa package that adds some new protocol support and a version of metacity with a composite manager. The end result is that you can use GL effects on your desktop with very few changes, the ability to turn it on and off at will, and you don't have to replace your X server in the process." This is part of
Fedora's Rendering Project, and
instructions on how to install all this are available too.
Member since:
2006-01-12
Actually, all Mozilla apps use XUL as their toolkit. This is even true on windows. The reason why you don't notice any substantial difference between the native widget and the XUL version is because of their use of the native theme APIs to render parts of the XUL widgets.
As for performance, Gecko 1.9 (the rendering engine used by Fx and Tb for HTML and XUL) is set to revamp the underlying graphics layer and use Cairo instead for all rendering. Gecko 1.9 will also feature reflow re-architecture which will speed up the rendering engine further.
If you are interested, you might want to test some of the experimental nightlies (at the moment only available for windows and linux)