From the new terms:
When you upload or input information through Firefox, you hereby grant us a nonexclusive, royalty-free, worldwide license to use that information to help you navigate, experience, and interact with online content as you indicate with your use of Firefox.
But has no mobile version effectively making it useless.
Firefox Desktop doesn’t have a mobile version, they just call an entirely separate codebase for the mobile version Firefox as well. If you want a mobile alternative there is Fennec.