WebRTC Network Limiter is a free Chrome add-on developed by chrome-webrtc-team. This add-on allows users to configure how WebRTC's network traffic is routed by changing Chrome's privacy settings. With this add-on, users can customize the routing options for WebRTC traffic in Chrome, ensuring their privacy and security.

The main features of WebRTC Network Limiter include the ability to prevent WebRTC from using certain IP addresses or protocols. This includes private IP addresses that are not visible to the public internet, as well as public IP addresses associated with network interfaces that are not used for web traffic. Additionally, users can require WebRTC traffic to go through proxy servers as configured in Chrome, effectively turning off UDP until UDP proxy support is available.

It's important to note that this add-on may affect the performance of applications that use WebRTC for audio/video or real-time data communication. By limiting network paths and protocols, WebRTC may choose paths that result in longer delays or lower quality. However, the developers are actively working to determine the commonality of this issue.

Overall, WebRTC Network Limiter provides users with greater control over their WebRTC traffic routing in Chrome, enhancing privacy and security while browsing the internet.