Some websites require JavaScript to be able to play videos. If Chrome is outdated, it is bound to be lacking in playing videos online. Every new update of the browser has additional features to make for more effective handling of new requirements of videos. This is usually the first reason why videos encounter challenges and refuse to play on Chrome. It is important you know the reasons why videos are not playing on your Chrome: These symptoms all indicate that Chrome cannot load, play, or simply stream videos from sites such as YouTube. When videos start becoming slow, blurry, or showing error messages, then these are signs that Chrome cannot play the videos. Part 1: Why Videos Are Not Playing on Chrome 04 How to Prevent 'Chrome Will Not Play Videos'.03 How to Play Videos on Chrome Properly.