YouTube Comment Redirector от YoutubeCommenter

This add-on enables a new way to interact with YouTube videos by providing an independent comment platform. When browsing YouTube, simply click the extension’s button on any video page to open a new tab with a comment section for that video—even if comments are disabled on YouTube itself. Users can read, post, reply to, and like comments, and sign in with their Google account for a personalized experience. Perfect for sharing thoughts and engaging with the community on videos where YouTube’s native comments are unavailable.