Cast YouTube in Browser is a subscription-based Firefox extension that allows users to control YouTube directly from their smartphones or tablets. This tool transforms the standard browser interface to mimic the YouTube for TV layout, which is typically inaccessible on desktop devices. Users can easily initiate casting by selecting the YouTube TV option from the extension's pop-up menu and following the straightforward instructions provided. Additionally, the extension offers a full-screen mode option for enhanced viewing experience.

The extension also provides a seamless integration with YouTube's features, including linking with TV codes for easy access. However, users should be aware that employing ad blockers may result in a black screen when attempting to play videos, as the ad is suppressed. Once the initial black screen appears, videos will resume normal playback. This tool is ideal for users looking to enhance their YouTube experience on larger screens without the hassle of traditional casting methods.