I wonder if TFF will see webGL, or is that a huge project?
-Emphasis, mine.• OpenGL support is presently disabled in 10.4Fx. This is Apple's fault, as Mozilla requires non-power-of-two texture sizes, which require OpenGL 2. Unfortunately, PPC Tiger does not support OpenGL 2 at all, and only a subset of cards support it in PPC Leopard (the really irritating part is that Intel Tiger does have OpenGL 2, and OpenGL 2 came out in 2004!). It may be enabled in the future for those handful of configurations on Leopard, but this won't benefit the majority of users. Note that many graphics features will work just fine; they just won't be hardware-accelerated.
• Because there is no OpenGL 2, there is no WebGL. The Linux version of Firefox has a fallback to libOSMesa, which is a software OpenGL rendering library, and we are hoping to abuse that for our purposes. Some work has been done on porting this to 10.4 without the X11 dependencies so that it is a pure renderer suitable for this task, but it is currently not working. The libOSMesa that is built-in to 10.4 cannot be used, because it is not OpenGL 2 (10.5's may be useable, but this is not yet explored or enabled).
From here:
https://code.google.com/p/tenfourfox/wiki/TechnicalDifferences