I would have been interested to see a Firefox OS in the same vein as Chrome OS. A clean, functional Linux distro that works out of the box with a simple (yet maybe hidden) switch to open it up to running native apps. With XUL extensions they were actually in a get position years ago to provide more powerful extensions than Chrome could. But they are killing off XUL in the future to be some kind of Chrome-copy. Unfortunately I feel the world is going to be Webkit oriented in the future with Chrome, Safari and even Edge being mostly compatible (extension wise, apparently, time will tell).<p>I understand them wanting to make it in mobile space but the bar to entry in the mobile market is so damn high not even Microsoft can do it.