I assume by "extensions problem" you mean https://bugzilla.mozilla.org/1661935 ? That's an entirely separate issue.
Regarding WebGL, that's unexpected. Can you share the contents of about:support, and the error message you get when you browse to e.g. http://webglsamples.org/aquarium/aquarium.html ?
I assume by "extensions problem" you mean https:/ /bugzilla. mozilla. org/1661935 ? That's an entirely separate issue.
Regarding WebGL, that's unexpected. Can you share the contents of about:support, and the error message you get when you browse to e.g. http:// webglsamples. org/aquarium/ aquarium. html ?