Crashes Firefox 23
No effects on Chromium 28.0.1500.71
>Error creating WebGL context. three.min.js:412
>Uncaught TypeError: Cannot call method 'getExtension' of null
Linux Mint 15 x64
Crashes Firefox 23
No effects on Chromium 28.0.1500.71
>Error creating WebGL context. three.min.js:412
>Uncaught TypeError: Cannot call method 'getExtension' of null
Linux Mint 15 x64
Check and make sure your 3D drivers are up to par.
Make sure webgl is enabled in chromium flags.
Are you really that surprised that 3D is flaky on linux?
Then again "in the wild" I wouldn't enable WebGL anyway for most sites.
Edit: I think it's a Firefox problem. Works in Chromium for me.
On laptops, dual graphics (Nvidia calls it "Optimus", don't know about AMD) doesn't work right so Intel and Mesa-supported integrated AMD graphics are the best choices on laptops currently. There's some light at the end of the tunnel for Nvidia: https://wiki.ubuntu.com/X/HybridGraphics
Not fast, certainly, but solid.
I use an Optimus laptop (yeah, bad decision) which Chromium doesn't support. The solution is to tell it to support it anyway:
$ optirun chromium-browser --ignore-gpu-blacklist
Now it works fine.
Edit: fixing the problem on firefox:
$ optirun firefox