DevTools Media Panel is a Firefox add-on designed for web developers, providing a new panel in the Web Developer Tools specifically for media elements and WebRTC. This tool enhances the debugging process by displaying detailed technical information about video playback and WebRTC connections on the current webpage. To utilize this feature, users can easily access the panel by navigating to the Web Developer Tools and selecting the 'Media-Webrtc' tab.

Within the media tab, developers can view crucial playback information for each video element present on the page, helping to diagnose playback issues effectively. The WebRTC tab offers insights into each PeerConnection and GetUserMedia (GUM), allowing for a comprehensive understanding of real-time communication setups. This subscription-based tool is a valuable asset for developers looking to optimize media handling in their web applications.