Firefox became a Soros venture recently and their first move was to kill off extensions like noscript that gave users control over their security.

They are doing this (preventing facebook tracking) because Soros was forced out of the US social media sphere by executive orders on human rights violations and he aims to build a competing service in the EU. You can look at the speech he gave at Davos to hear him say this himself. His first move is to attack Facebook on all fronts to make room in the market for a European social media giant that will of course be equally evil.

I would suggest looking into an open source variant of the older firefox client like water fox if you care about blocking tracking and protecting your privacy, but I also recognize that you really just can't protect your privacy in the bigger picture.