:farre has reproduced this on mac; and also ran the current [WIP for fullscreen ipc](https://bugzilla.mozilla.org/show_bug.cgi?id=1913666) which at least at the moment made it not reproducible.
Bug 1916152 Comment 5 Edit History
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:farre has reproduced this on mac; and also ran the current [WIP for fullscreen ipc](https://bugzilla.mozilla.org/show_bug.cgi?id=1913666) which at least at the moment made it not reproducible. Edit: well apparently it seems to intermittently fail, so at this moment it's safe to assume that I need to dig further into what causes this specific issue.