Yes. Mozilla couldn’t get the mobile operators to sell a phone pre-loaded with FirefoxOS. And no one is going to buy a phone and reimage it.
> I can't understand how Mozilla failed to execute on Firefox OS.
This is naive. They did execute, and failed. That’s different than not executing at all. You can’t break into this segment without cooperation from the mobile phone operators... even in India and Southeast Asia whom were the primary target markets (less disposable income than Americans)
I had a Firefox OS phone. There was nothing great about it. It was average (by intention in order to work on restricted devices). I never used it to make calls, I used it for development. And it only had a wifi connection because I did not buy service for it.
There was nothing really “disruptive” about it as I recall. $20 Android phones destroyed any hope after the mobile operators turned a blind eye.
p.s. I still have the phone.