I’m on Firefox with the built-in tracker blocker set to “strict”, and I have uBlock and uMatrix installed. I also have Privacy Possum but I don’t know if it’s providing any extra protection. Should I keep it or should I uninstall it?
Useless. Just use uMatrix or uBO with LocalCDN, and call it a day. Also Invidition to convert YouTube and Twitter links to invidious and nitter instances.
The built in blocker will even work at standard with uBO medium mode or uMatrix with similar settings.
Use Energized lists and modify your system HOSTS rules. I use Ultimate with Xtreme addon. https://github.com/EnergizedProtection/block
deleted by creator
Privacy Badger is even more useless. Possum says it manipulates cookie and header data gathered. You can always sanitise cookies after each session and achieve same thing anyway. And block trackers, which you should anyway using system HOSTS rules using uBO or uMatrix.
Look into nextdns and ahadns.