One of the best things you can do for privacy is blocking all third party domains by default with uBlock (or uMatrix). A lot of sites will break and not render

One of the best things you can do for privacy is blocking all third party domains by default with uBlock (or uMatrix). A lot of sites will break and not render properly, but it's the best kind of active protection against trackers you can have. You then manually enable what you want, and leave all the rest (social trackers, Google/Adobe fonts, telemetry) off.