WebRTC (Web Real-Time Communication) is an API definition drafted by the World Wide Web Consortium (W3C) that supports browser-to-browser applications for voice calling, video chat, and P2P file sharing without the need of either internal or external plugins.
When WebRTC is enabled in your browser, your real IP address will be exposed to the public (even if you're using a masking service such as VPN). But preventing WebRTC leak helps you protect your IP address. WebRTC Control will also disable the following WebRTC components:
a. navigator.getUserMedia
b. window.MediaStreamTrack
c. window.RTCPeerConnection
d. window.RTCSessionDescription
In order to report bugs, please visit addon homepage (http://mybrowseraddon.com/webrtc-control.html) and fill the bug report form.