From Alessandro's Wiki
- All network interfaces are visible through this WebRTC
- fix: (taken from http://whatismyipaddress.com/vpn-leaking)
- For Chrome and Opera
- Install the ScriptSafe extension from the Chrome Web Store, which will definitely disable WebRTC. It works for Opera as well, but it may be a cumbersome process to install it.
- For Firefox
- There are two options: 1) Disable WebRTC directly by opening a tab and going to "about:config" in the address bar. Find and set the "media.peerconnection.enabled" setting to "false." 2) Install the "Disable WebRTC" add-on from Mozilla Add-ons (go to @YourAnonNews for the link).