Gecko (Firefox's native browser engine) is also a mobile browser engine, and Apple's anti-competitive WebKit requirement prevents browsers such as Gecko-based F

Gecko (Firefox's native browser engine) is also a mobile browser engine, and Apple's anti-competitive WebKit requirement prevents browsers such as Gecko-based Firefox from being released on iOS. By forcing the use of WebKit, which is much more similar to Chrome's Blink than Gecko is, Apple is indeed limiting browser engine competition.