hi, don't hold your breath for that to happen. since even ms seems to abandon their mobile platform lately, i don't think it would make sense for mozilla to start developing for it now (& i know of no plans in that direction).

Does it really make since to develop Firefox for Windows phones when the low users are dropping lower over time at below 1% market share. If Mozilla had actually made a mobile Firefox version for Windows phones I would not have been surprised if Mozilla discontinued it a while back to use that resources elsewhere.