Earlier quoted context omitted.
You're not using Firefox, you're using Safari with another skin. Browser engines other than Apple-approved Safari/WebKit are illegal on Apple platforms, effectively rendering it the biggest blocker for the web right now (no PWAs, no push notifications, no offline support, no support for free audio codecs, extensions ... and the list goes on!)
I wouldn't bury your flag on this argument. Many users don't care about that stuff, and Apple is winning the privacy war through decisions like these.
Users don't object to a lot of things when either they aren't aware of them or they believe they can't do anything about them. That doesn't mean they aren't still being harmed.