rexrainbow Thanks. It works great.
Thought to inform you this. Earlier When I tried to authenticate with fb through your plugin it used work great but now I'm receiving a message in the browser log - something like "firebase has depreciated this feature to provide better service to users". I don't remember the message correctly but I found something like that and then I'm getting firebase log errors. I tired with your facebook or google .capx as well. It gives the same output but the connect facebook works great.
I hope this helps you in the plugin development.