I was under the impression that Privacy Badger wasn’t considered useful any more . . . ? They should’ve just recommended using Firefox instead, yes?
EDIT: They spoke to, but IMHO, did not give enough time to, Cory Doctorow and Brewster Kahle. They mentioned Mastodon 👍, and described the Fediverse while not actually calling it that! A bit frustrating.
Privacy Badger does more than dFPI. dFPI just isolate cookies. Privacy Badger blocks cookies. And completely block connection to some hosts that are dedicated to tracking, which prevent other forms of tracking that aren’t cookie-based.