(In reply to Davyd McColl from comment #22) > setting `security.sandbox.gpu.level` to `0` resolves for me too. Should I be resetting this at some point? That shouldn't be necessary. When nightlies appear for this morning, the pref's default value will go back to 0 (we're backing out the breaking change that changed it from 0 to 1) and when your prefs file is next saved, the custom/user-set value will disappear because it is identical to the default. It'd be worth double-checking that that's happened in a day or two, though. :-)
Bug 1630860 Comment 23 Edit History
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(In reply to Davyd McColl from comment #22) > setting `security.sandbox.gpu.level` to `0` resolves for me too. Should I be resetting this at some point? That shouldn't be necessary. When nightlies appear for this morning, the pref's default value will go back to 0 (we're backing out the breaking change that changed it from 0 to 1) and when your prefs file is next saved, the custom/user-set value will disappear because it is identical to the default. It'd be worth double-checking that that's happened (ie that the value shows up as "default", ie not in bold type, in about:config) in a day or two, though. :-)