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How to Prevent WebRTC Leaks in Browsers

This guide explains what WebRTC leaks are and how to prevent them in supported web browsers.

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What Is a WebRTC Leak?

WebRTC is a browser technology that enables real-time communication features like voice, video, and peer-to-peer connections. In some cases, it may reveal information about your network connection, including your IP address, even when you’re connected to a VPN. This is known as a WebRTC leak.

Some browsers offer limited controls over WebRTC behavior, but there’s no universal setting that completely prevents WebRTC-related IP exposure across all browsers.

For more support, read our guide on how to avoid connection leaks.

Prevent WebRTC Leaks in Browsers

Firefox

Firefox allows WebRTC to be fully disabled through advanced settings, but be aware that this will likely break any websites or apps that rely on real-time communication features.

  1. Open Firefox. Type about:config in the address bar and press Enter.

    Firefox browser showing about:config in address bar highlighted.

  2. On the pop-up, select Accept the Risk and Continue.

    Firefox browser changing advanced configurations pop-up.

  3. Search for media.peerconnection.enabled.

    Firefox browser showing media.peerconnection.enabled in address bar highlighted.

  4. Double-click the setting to change its value to false.

    Firefox browser showing media.peerconnection.enabled selected as false.

Brave

Brave includes built-in privacy settings that can reduce WebRTC-related IP exposure.

  1. Open Brave and click on the hamburger menu (☰).

    Brave browser showing hamburger menu icon highlighted.

  2. Click Settings.

    Brave browser side bar showing Settings highlighted.

  3. Click Privacy and security.

    Brave browser settings showing privacy and security highlighted.

  4. Click the dropdown menu next to WebRTC IP handling policy and select Disable non-proxied UDP.

    Brave browser WebRTC settings showing drop-down highlighted.
  5. This helps ensure WebRTC traffic is routed through your VPN or proxy where possible.

Opera, Chrome, Edge, and Safari

Most Chromium-based browsers (including Chrome, Edge, and Opera), as well as Safari, don’t provide a simple built-in option to fully disable WebRTC.

Some browsers may include limited experimental settings or rely on system-level behavior, but these don’t fully remove the possibility of WebRTC-related IP exposure.

 

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