Thanks again. Given that we now no of at least one way that [this assertion](https://searchfox.org/mozilla-central/source/mozglue/misc/WindowsProcessMitigations.cpp#47-49) can trip, I'm going to guess that something else is causing similar issues here. Just pushed a try build with that removed.
Bug 1769845 Comment 55 Edit History
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Thanks again. Given that we now know of at least one way that [this assertion](https://searchfox.org/mozilla-central/source/mozglue/misc/WindowsProcessMitigations.cpp#47-49) can trip, I'm going to guess that something else is causing similar issues here. Just pushed a try build with that removed.