Show YouTube Comments While Watching is a Firefox extension designed to enhance user engagement during video playback by displaying comments in real-time. This tool allows users to immerse themselves in the content while simultaneously viewing the opinions and reactions of other viewers. The integration is seamless, ensuring that comments do not distract from the video but rather complement the viewing experience.

The extension is subscription-based and falls under the social and communication category, specifically targeting social networking. By forking from an existing open-source project, it brings additional functionalities to the table, focusing on improving interaction within the YouTube platform. Users can easily toggle the comments on and off, making it a flexible addition for those who wish to enhance their video-watching experience.