Some time ago the WebRTC panel showed a Telefónica logo in it. This was due to a partnership with Telefonica. Because Telefonica acquired TokBox - a service providing WebRTC - previously.
However I cannot find more information about this partnership. Is it just an advertising partnership or do they contribute code or support you in another way?
Or does Firefox even use the servers of TokBox? This is be indicated by the privacy policy:
Firefox Hello is provided to you in collaboration with TokBox, Inc.
(“TokBox”) and sends data to TokBox as a part of the function of the
service. This notice only describes how Mozilla handles information we
receive from you. For more information on TokBox’s handling of data, you
should read their Privacy Policy
But you still do not know what data is sent to TokBox…
And the servers (at least the signalling server) still needs to be trusted, because it can MITM the connection.