Mozilla won't be bringing Firefox to iOS so long as Apple maintains its currently policy towards third-party browsers, according to the company's VP of product, Jay Sullivan. The executive made the comments over the weekend as the ongoing SXSW gathering in Austin, Texas. He added that the company isn't currently building a Firefox iOS app, and isn't planning to. The problem, Sullivan noted, is that App Store rules prevent Mozilla from porting its rendering and JavaScript engines to iOS.