Doesn't seem to work in Firefox 4.0 (b3), which should have WebSockets... (I think it might be a different protocol version from what Chrome supports, which is

Doesn't seem to work in Firefox 4.0 (b3), which should have WebSockets... (I think it might be a different protocol version from what Chrome supports, which is exactly the reason it sucks when browsers go out there with protocols that aren't more mature yet).