Any legal experts want to weigh in on whether this is even allowed? CC0 by definition has no limitations, but GPL very explicitly has limitations for what the code can be used for, and also applies to derivatives. If it was their own code but was officially submitted to the Linux repo, who owns it and gets to decide how the code can be licensed?
Firefox: We’re the “privacy” browser
Also Firefox: But I’m sure they won’t mind if we shamelessly erode that privacy. Just a little, and we can always gaslight them into thinking people asked for it.