On an individual level, Librewolf is a good idea, because it has saner privacy defaults than Firefox; and its devs are rather good at gutting out the crap.

However, on a collective level, the problem still remains: we have exactly two options, Chromium and Firefox (note LibreWolf is a custom version of Firefox). One is from GAFAM cancer, another is from a GAFAM vassal that keeps doing dumb stuff, since it’s nothing but contained opposition.