[Cialug] Firefox weirdness

[L. V. Lammert]

Rebuilt my main workstation a few weeks ago, .. and 15.3 came with FF
78.13 ESR. NP, .. supposed to be stable, eh?

Previously had been tracking current (91 or something like that), and
every time I rebooted, FF came back with the previous sessions.

Now, however, almost every OTHER time, FF 78.13 fails to restore! Same
reboot process; also happend with a logout/login.

Anyone seen such behavior?