For some reason I'm getting horrible crashes on my app (has worked great for months. Still works great on Linux and Windows) since chrome switched to gpu rendering for everything. I haven't found the issue yet but it's really odd.
I had really bad crashes (high pitch noise, bright white flash, driver killed) on Firefox 4 and Chrome 7 when they started to use HW acceleration and problems went away after the update.
No luck on that, I checked and there was in fact a graphics update but that didn't affect the behavior. My next step is to try to figure out what is causing it to make a bug report.
Oh, most of them are, but the ones with textures seem to be awfully slow (the earth one for instance). Works nice in chromium though.
I guess that has to do with hardware acceleration. FF3.x does not have that yet, so it's falling back to software rendering SVG's, and software rendering is.. you know, awfully slow.
Try the FF4 beta if you want to see how things shape up, I think that has HW acceleration built in, though I'm not sure how far they are with WebGL.