Interesting. I don't crash on 10.12, on a mid 2015 MacBook Pro with Intel Graphics hardware (Iris Pro) that uses the AppleIntelHD5000Graphics kernel extension. I tested with FF 81 and yesterday's mozilla-central nightly (which doesn't yet have this bug's patch).
Bug 1664843 Comment 23 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
Interesting. I don't crash on 10.12, on a mid 2015 MacBook Pro with Intel Graphics hardware (Iris Pro) that uses the AppleIntelHD5000Graphics kernel extension. I tested with FF 81 and yesterday's mozilla-central nightly (which doesn't yet have this bug's patch), using plain-vanilla settings.