[Green Man]

for Chrome:
    WebRTC in Google Chrome and Chromium-based web browsers is supported and enabled by default since Chrome version 23.
   To protect IP addresses from leaking, using the official webrtc.org extension WebRTC Network Limiter. It has few options, depending on what you're looking     for.

As-well you should append " --disable-webgl " to the target for your chrome shortcut (on windows) to stop the webgl service.

Here is a demonstration of someone resolving your IP address. https://github.com/diafygi/webrtc-ips

Great post OP, spreading the awareness.