How to Fix WebRTC IP Leaks in Chrome and Firefox

Practical settings and extensions to stop WebRTC from advertising your real IP while VPN is on. Chrome / Chromium Chrome does not expose a simple “disable WebRTC” toggle. Use privacy-focused Chromium builds, enterprise policies, or reputable extensions that force relay-only mode. After changes, restart the browser and retest candidates. Firefox In about:config , set media.peerconnection.ice.default_address_only and related ICE prefs carefully, or disable peerconnection if you never need browser calls. Document what you change so you can reverse it for Meet/Zoom-in-browser. Trade-offs Hard-disabling WebRTC breaks some video calls. Prefer VPN + relay-only modes when you still need conferencing. Verification workflow Connect VPN Close all tabs that might hold old peer connections Run WebRTC + DNS + IP tests Join a test call only after privacy checks pass Related reading Pair with WebRTC leak basics and DNS leak prevention . Protect yourself with AstraGuard VPN AstraGuard VPN helps keep DNS inside the tunnel with strong encryption, kill switch options, and simple setup on desktop and mobile. Create an account , pick a plan on packages , then verify on privacy tools .