Ah, darn. Unfortunately I have no additional help to offer since that particular issue was fixed for me after changing those options in Flatseal.
I’d try running Firefox from the terminal to see what error message you’re receiving when the crashes occur; the unique error message was what led me to this workaround when I was originally troubleshooting.
As others have pointed out, there’s a lot to hate about ads since the industry is routinely dishonest, insulting, obnoxious, deceptive, intrusive, and all manner of unpleasant. I’ve been adblocking religiously for most of my life for these reasons.
So I think a more interesting question might be the other way around: “What do you like about commercials?”
The only commercials I’ve ever liked are the ones for local small businesses. The ones with a nonexistent production budget that aren’t beating the viewer over the head with blatant lies or dishonest sales tactics.
Adult Swim used to have faux-ad bumpers for the fictional business “Strickland Propane” from King of the Hill, featuring the honest-to-a-fault character Hank Hill as the spokesman, which I felt captured that vibe well.
Rhett and Link also made a funny homage to these kinds of commercials in this classic skit: https://www.youtube.com/watch?v=vnOyMSEWNTs