One thing that's mysterious to me is that the change above was made as far back as Firefox 92, and coincidentally both of you apparently had an Exploit Protection configuration change pushed around Firefox 100 that would've completely broken the past 8 version of Firefox. (I mean, I see nothing in this bug that hints anything in Firefox 100 caused this!)
Bug 1770098 Comment 18 Edit History
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One thing that's mysterious to me is that the change above was made as far back as Firefox 92, and coincidentally both of you apparently had an Exploit Protection configuration change pushed around Firefox 100 that would've completely broken the past 8 version of Firefox. (I mean, I see nothing in this bug that hints anything in Firefox 100 caused this!) Is this just a bad coincidence? Is there some Windows forum that you(r admins) frequent that recommended these 'improved' settings?