Comment 4 for bug 1463598

WebGL stopped working for me also in chrome 43 some time last week, i'm on ubuntu 15.04. OpenGL on my machine is fine and WebGL works in firefox. This is on an NVidia card. Here's some info:

Data exported 6/12/2015, 5:03:28 PM
Chrome version Chrome/43.0.2357.81
Operating system Linux 3.19.0-20-generic
Software rendering list version 10.7
Driver bug list version 8.06
ANGLE commit id unknown hash
2D graphics backend Skia
Command Line Args --enable-pinch --flag-switches-begin --flag-switches-end

Driver Information
Initialization time 0
Sandboxed false
GPU0 VENDOR = 0x10de, DEVICE= 0x13c0
Optimus false
AMD switchable false
Driver vendor NVIDIA
Driver version 349.16

GL_VENDOR NVIDIA Corporation
GL_RENDERER GeForce GTX 980/PCIe/SSE2
GL_VERSION 4.5.0 NVIDIA 349.16

Window manager Metacity (Marco)
XDG_CURRENT_DESKTOP MATE
GDMSESSION mate