OpenVideo is a subscription-based multimedia add-on for Firefox that enhances video streaming experiences by eliminating ads, even on sites that typically block ad blockers. It provides users with a dedicated video player featuring essential functionalities such as player hotkeys for fullscreen mode, a download button for videos, and easy subtitle integration from local files or URLs. The player also remembers where users left off, supports theater and picture-in-picture modes, and automatically embeds on popular streaming sites.

In addition to its player features, OpenVideo includes a built-in video search engine that does not replace the default search engine, as well as a library for managing video history and playlists. The add-on employs Google Analytics for tracking usage trends and error reporting, ensuring functionality without compromising user anonymity. Users have the option to disable tracking through the extension's settings.