They literally restrict the usage of Firefox by applying their policies. It’s written.

They apply a license. that's how open source projects work. You said:

Its existence violates the first freedom of open-source applications: The freedom to run the program as you wish, for any purpose (aka “freedom 0”).

which is just fundamentally incorrect. go look at the GPL and look at how many restrictions there are. The same applies to every open source license. If you apply a license you by definition are restricting someone to follow that license. If you do not add a license to your project then your project is not open source and cannot be used due to how copyright laws work across the planet.

Why are they doing stuff on my behalf instead of relying on the programming language that already does everything. That’s another lie of course. Mozilla does nothing but they pretend they do in order to get more data and credentials.

what are you talking about...

Mozilla should have no fucking role when someone uses Firefox.

that's not how browsers work. go use Lynx if you want that.

And stop with the Sync crap, it has already been dealt with when the user subscribed to the service.

once again, what are you talking about? There is no subscription with Sync...

If you dont understand why people are pissed that a company demands any kind of overreaching control that has never existed so far, you must be working for Mozilla but it’s not very convincing.

Mozilla didn't demand any overreaching control, you're just incapable of understanding nuance and want to get outraged over everything.