Is it possible to use a FireWire camera as a webcam with Google+ Hangout?

I’ve been sitting here trying to get my HVX200, which connect to my computer via firewire to work as a webcam with Google+ for a few hours now. I got my Facetime app to recognize it and also another app to recognize it, so I know it is connected to the computer properly, but Google+ or Ustream does not recognize it. I need to know if this is a fool’s errand. Is it even possible to connect a firewire camcorder and use as a webcam for Google+ ?