Havent tried anything in 3d yet.
The good news is that webgl is no longer disabled by default in firefox:
WebGL Renderer NVIDIA Corporation -- GeForce 210/PCIe/SSE2 -- 3.3.0 NVIDIA 302.17
People in youtube are still blue, which i gather is a flaw in flash, but the fix for the problem no longer appears to crash the plugin.
I have a geforce 210 and xorg-server 1.12.2