Update to Firefox 85.0 64bit hanging on opening private windows under some circumstances
I updated from the prior version to 85.0 (64 bit) today (Windows 7), and a new problem has shown up almost at once.
Under some circumstances, in particular, when I have one private window open on a King game that utilizes animation (in particular, https://www.king.com/game/candycrush ) and, while this is open, if I attempt to open a new private window, Mozilla Firefox HANGS altogether (doesn't crash--but shows an egg-timer and Windoze reports that it isn't responding).
I did ""NOT"" observe this in the prior version, or in any of the prior versions, but it seems to be something I can recreate pretty regularly, so it seems to be a bug which will probably show up when using other Web sites, as well, although, so far, this is the condition under which I've been able to reproduce the behavior.
I imagine it'll be fixed at some point, but have no idea how to bring this to the attention of a developer properly.