RE: They need to spend time on getting TVs and mobiles right,
It looks like that may very well be the case:
http://www.theregister.co.uk/2015/07/17/breaking_fad_android_tv_and_firefox_os_head_to_head/
The "money part" being:
The package is extremely elegant, and couldn’t be more different to Android TV. Indeed, Firefox OS owes more to LG’s webOS than anything else. It’s brilliant and I love it.
Perhaps, once they have demonstrated that they can build a device OS that performs well, they can fire the existing browser developers, and do a re-think of the Firefox browser. It is sorely needed.