WebRTC allows you to establish a conference call without the use of plug-ins by modern browsers Mozilla and Chrome, but at the same time reveals your real IP even for VPN, as well as a list of all the local IP-addresses are for NAT. Sample
Disable WebRTC in Mozilla Firefox:
In the browser address bar enter:
Ask to find
Set the value to "false" and check again!
Disable WebRTC in Google Chrome:
In Google Chrome for blocking WebRTC need to install the plugin "Easy WebRTC Block"
Disable WebRTC on Android for Chrome users:
In the address bar, enter the Chrome browser:
Sets the value of "enable"