WebRTC interfaces with the “moz” prefix (mozRTCPeerConnection, mozRTCSessionDescription, mozRTCIceCandidate) have been deprecated.
Mobile Firefox:
WebRTC: Outdated and non-standard {sdpSemantics: "plan-b"} is not supported! WebRTC may be unreliable. Please update code to follow standard "unified-plan".
WebRTC: RTCIceServer.url is deprecated! Use urls instead.
Both desktop & mobile Firefox:
Mobile Firefox: