> And who'd have thought that some vendors aren't even interested in fixing "non-security" crashes;
While I can't answer that I can tell you that I was very surprised Firefox showed little interest to fix this:
https://files.hboeck.de/crashff.html
(linux only, crash via notification api, bug open for a year)
I can reproduce it on Firefox 55 and 56 in Ubuntu Mate, it crashes after I allow the notification. It'd be useful to have a bug link so I can see what the status is. It could be an Ubuntu issue for all I know.
While I can't answer that I can tell you that I was very surprised Firefox showed little interest to fix this: https://files.hboeck.de/crashff.html (linux only, crash via notification api, bug open for a year)