I just spent the better part of an hour trying to figure out why Firefox was crashing (well, not in the traditional sense of a "I die right now with, e.g., a SIGSEGV or something", but a "GAAAHH!! your tab has crashed" message. This is on a Xubuntu 18.04 on a Core i3 Dell computer, all updates applied, even starting FF off with a brand-spanking-new, just minted profile (to eliminate the possibility of one of my usual extensions being the problem). I even hit the "L" in aptitude(8) to reinstall it. Every time I would go to https://en.wikipedia.org , boom, no more FF tab, please send a crash report.
I even went over to my Xubuntu 20.04 system, no such issue. Even with all my usual stuff loaded and enabled, Wikipedia was just fine. And then the weirdest thing....
I was entering in the URI for another time, where FF suggested YouTube. Eh, what the heck, let's do it. I watched a Mr. Beast vid about him doing without food for 30 days.
spoiler alert
He didn't make it, got about half way through, was doing a shoot with Gordon Ramsay, and just had to eat what Gordon made. So he lost (most of) the hair on his head.
Anyways....not believing the Mozilla people could screw up that badly as to have one of the world's most popular Web sites bring it down, I tried it again after the vid. No crash, in fact it was fine. I even ran it with my usual profile (including ublock Origin, Tampermonkey, NoScript, Stylish, and several others) without issue.
So, no idea why, but it was really weird for, I don't know, about an hour. The one other thing I'll "say" right now is, I did delete some profiles...because after a while, you just gotta. MT, emptier, new-empty...you run out of things to call it. Now I have to wonder if someone managed to compromise Wikipedia and plant some very targetted, JavaScript malware on it. Doubt it, but that seems at least plausible to me.
English is a difficult enough language to interpret correctly when its rules are followed, let alone when the speaker or writer chooses not to follow those rules.
"Jeopardy!" replies and randomcaps really suck!