[commoner]

Even though Mozilla's execution leaves much to be desired, Firefox does support a limited number of extensions on Android (including the incomparable uBlock Origin), which is still more than the number of extensions Apple allows Firefox to support on iOS (zero). Forks of Firefox for Android, such as Mull and Fennec F-Droid, gain access to all compatible add-ons on addons.mozilla.org, while an equivalent fork of Firefox for iOS would also be restricted to zero add-ons. So yes, Apple's anti-competitive App Store restrictions are still a problem because they prevent Safari's competitors from implementing an important feature that Safari supports.