The experience on Firefox and Firefox Android seems inconsistent and inferior with the experience on Chrome. The mobile skin doesn't seem to work on Firefox mobile. Any chance this would get fixed?

All you'd have to do is navigate to the user-agent management area of the ACP and add the appropriate Firefox mobile user agent, and then go to the look and feel area and map that user agent to the mobile skin. That said, in 4.0 we are using a responsive skin which is NOT tied to specific user-agents, so this is a non-issue in the next major release. The specific interface displayed will be based upon screen resolution instead.