The Resist fingerprinting and Third party isolation settings is also worth a try, it doesn't stop everything but it does prevent some of it. For usability I usually install the corresponding add-ons so I can toggle them with a button (these settings tends to break stuff).

LocalCDN may also help a bit by using local copies of commonly used resources.

I used to have an add-on that could spoof the font detection by making small random changes to font sizes, but it stopped working and I haven't found a replacement.