WebRTC Protect is a Firefox extension designed to prevent WebRTC from leaking both public and private IP addresses. This subscription-based tool modifies the browser's privacy settings to control WebRTC's network traffic, ensuring that sensitive IP information remains hidden. By default, the extension blocks WebRTC, offering users the ability to enable it momentarily through a convenient toolbar button. Even when disabled, the extension maintains protection for private addresses, enhancing user privacy.

Key features include the ability to configure WebRTC to avoid using certain IP addresses and protocols, effectively hiding both private and public IPs associated with network interfaces. Additionally, it can enforce that WebRTC traffic routes through proxy servers, with options to disable non-proxied UDP traffic. Users should note that while this extension enhances privacy, it may impact the performance of websites reliant on WebRTC for real-time communication.