“Protects you against tracking through “free”, centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.”
On top of the ones mentioned already, I also use decentraleyes:
https://decentraleyes.org/
From the FF add-on page:
“Protects you against tracking through “free”, centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.”
LocalCDN is similar but supposedly works for more libraries, and is supposedly updated more often.
Thanks, will check it out. Haven’t heard of it before