Unless they stop happily providing all kind of hardware info to the trackers that will trivially identify your session, this privacy circus is fooling no one.
Anyway, Mozilla agains spying is as bees agains honey.
Just recently they push FIFA from start page, then added some third party site with games, all while their codebase is leaking memory and consuming CPU and wasted more electricity in 10 years than all AI datacenters wordwide.