In Nightly 39.0a1 (2015-03-25), creating an experimental-webgl2 context fails and prints this error to the console. Error: WebGL: WebGL 2 unavailable. The following required features are unavailible: sampler_objects texture_storage transform_feedback2 Error: WebGL: WebGL creation failed.
Those features are unavailable in OS X 10.8.5 because it only support OpenGL 3.2. You'll need to upgrade OS X to get a more capable version of OpenGL.
Status: NEW → RESOLVED
Last Resolved: 3 years ago
Resolution: --- → WONTFIX
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