Tracking Protection uses the blocklist provided by disconnect.me. I haven't yet had time to look into DDG's Privacy Essentials, so can't comment on that. But P

Tracking Protection uses the blocklist provided by disconnect.me. I haven't yet had time to look into DDG's Privacy Essentials, so can't comment on that. But Privacy Badger functions by having a more limited list out of the box and then while you're browsing, it's observing the behaviour of loaded scripts and such, and then dynamically blocks them, if they seem to be tracking you. So, in the long run, it catches more obscure tracking scripts, though there is also something to be said about it needing this time to understand that a script is tracking you. Then in addition, Privacy Badger also eats up cookies from trackers and blocks social media buttons (or rather replaces them with a non-tracking version). Tracking Protection is just a dumb blocklist, so if you are looking for an all-in-one solution, Privacy Badger is the better choice.