Firefox

Ah, makes sense (though one of those Librewolf default settings is to delete your history and cookies on logout). I went with Waterfox myself because I don't consider my privacy needs to outweigh my convenience preferences that much, but it's really good that Librewolf exists for those that do want privacy at the cost of annoyances. Being able to have that "fully hardened" experience in one click is huge, since the Venn diagram of "people with strict privacy needs" and "people with tech skills" is not a circle.