tsm just..falling over

[XRaiderV17]

so, today I tried to launch firefox, and have now consistently encountered it just..blipping out.
the expected behavior is it opens, blips, relaunches, restores last session.

what I am seeing instead..is the described misbehavior which I have managed to take video of.

tab.session.borked.mov

[XRaiderV17]

and as its eaten my video..I'm gonna post a link from dropbox.

https://www.dropbox.com/scl/fi/vckcxn9zyln31935tl0l9/tab-session-borked.mov?rlkey=3yuljs8u5cr51lokpt57qto7l&st=g2kwgcwi&dl=0