Yeah if you fiddle around with about:config without knowing exactly what yer doing, shit breaks. Fortunately you can type “about:profiles” in the url box, make a test profile, and mess around as much as you want before nuking your default browser.

I read about this too, and it worries me. Google has donated over a billion dollars to Mozilla over the years. That alone doesn’t scare me so much as it’s a blatant propaganda tool to deflect the antitrust sentiment that plagues them and will probably some day do its work of breaking them apart.

Fortunately, there are numerous open source forks. I am currently using Librewolf, a fork of firefox focused on privacy and anti-tracking, and it has worked without a hitch. A couple of my extensions have required fiddling with to get right but it’s part of life if you care about these things.