[the_zeroth_law]

One major difference is that Privacy Badger doesn't use a blacklist like the others and really isn't designed for the purpose of ad-blocking. It's designed to prevent non-consensual tracking, so it observes which third-party domains try to store high-entropy cookies, and if it sees a third-party domain doing so across multiple first-party sites, blocks any further third-party requests to that domain.

Full disclosure: I work at EFF, which makes Privacy Badger.

[nextos]

That's good. What plugin setup do you recommend on Firefox to protect ourselves?

Furthermore, I'm concerned about useragent and font metadata attacks. Any recommendations for these?