If you have the time try the troubleshoot mode to help figure it out - add ons are often the cause

https://support.mozilla.org/en-US/kb/troubleshoot-firefox-crashes-closing-or-quitting

Maybe this method could one day be used with open street map

Annoyingly there’s some infrequent and arguably uneccessary swearing in Spiritfarer. But if you’re reading to the child you could skip those words of course.

A Short Hike. Lead character is called Claire. No combat, no death, no resets. Just exploring, puzzles and story.