You're confusing Firefox Hello with WebRTC. Let me explain by analogy with a video codec:
For video, Firefox contains a video codec. Surfing to YouTube lets the YouTube web page play video. Firefox does not contain a "Youtube Player".
That's exactly the opposite of what they have done here. They have added basically added a "Telefonica WebRTC Player". That's wrong. They should have added WebRTC generically so that you go to a web page at Telefonica to use it. Or better yet, use it with a server you trust.
For video, Firefox contains a video codec. Surfing to YouTube lets the YouTube web page play video. Firefox does not contain a "Youtube Player".
That's exactly the opposite of what they have done here. They have added basically added a "Telefonica WebRTC Player". That's wrong. They should have added WebRTC generically so that you go to a web page at Telefonica to use it. Or better yet, use it with a server you trust.