Are you still facing the same problem with Twitter videos after all the changes? Then the last thing you should try is to update your browser. If you are running an outdated version of Chrome, it might hinder the videos from playing. In addition, the outdated version can make your browser incompatible with Twitter videos. You can quickly check if your browser is an updated version of Chrome or not by clicking on the three dots on the top right corner of the browser. If it shows you an option to update your browser, you are running an outdated Chrome version. Therefore, you should update it as soon as possible to fix all the problems related to it, including playing Twitter videos.