Windows Media Player HTML5 Extension for Chrome'Windows Media Player is required to show some elements on this page' and you haven't been able to play content because you haven't installed the right plugin to your browser? Forget about that annoying message because with the Windows Media Player HTML5 for Chrome extension, you won't have to change browsers to play videos and podcasts. Windows Media Player HTML5 is an extension for the Google Chrome web browser that facilitates playing MP4-formatted video and any other Windows Media Player content on non-Internet Explorer browsers. Thanks to this complement, Chrome users can play H.264 encoded videos in HTML5 webpages by scanning and replacing video tags with the Windows Media Player plugin so that the content can be played. Of course, the extension can only replace the video tags if the video is in one of the formats supported by Windows Media Player.