This is exactly what I last week and this seems to have fixed the issue. But the point still stands, I don't expect my mom who uses Ubuntu to do these things.
I'm glad you found a workaround. Do you know which setting change fixed the issue?
If file a bug report in Bugzilla with a copy of your Firefox's about:support information, Firefox developers can work around the buggy GPU driver so other users don't experience the driver crash.
If file a bug report in Bugzilla with a copy of your Firefox's about:support information, Firefox developers can work around the buggy GPU driver so other users don't experience the driver crash.
https://bugzilla.mozilla.org/enter_bug.cgi