Mozilla working on Chromecast-like mirroring for Firefox Android browser

Maybe this is Mozilla's retort to Google's Chromecast, maybe it isn't. Either way, the end result certainly looks similar. Details are scarce, but an enigmatic Google+ photo shared by insider Mark Finkle clearly reveals some sort of wireless tab mirroring between a Nexus 4 and a Roku box. We're going to hazard a guess that it's being orchestrated through the web, rather than merely being based on WiFi Direct or a similar device-to-device protocol. In the same manner as Chromecast or Apple's AirPlay, this could allow the Firefox-running smartphone to be used independently from what's shown in the display -- so, for example, it could work as a keyboard or a remote control at the same time as feeding content. Anyway, there's a limit to how much we can glean from a single pic (could that be a DVD-VHS combo player on the shelf?), so we've asked Mozilla for a bit more detail and will update this post if we hear back.

Update: Mozilla has confirmed that it is indeed at working on a second-screen solution for Firefox on a range of devices:

"We are conducting some experiments around second-screen support with a number of devices. But this is at investigation stage and we have nothing to announce at this time."