I'm rather apprehensive about WebRTC, since it is something that adds a lot of complexity and potential security hazards to Pale Moon. In addition, Pale Moon is (and should remain) a web browser, IMHO, and not try to double as a Skype client.
Since it's been asked, I want to ping Pale Moon users and get some feedback on the matter before Pale Moon v24 is published.
To give your feedback on this matter, please go to the form I prepared, and provide your answer!
http://j.mp/1ail4bS (form closed, thanks!)