Many users have faced problems while playing videos with Mozilla Firefox. It is not difficult to play videos with Mozilla Firefox Customer Service , if you have installed flash player properly. You need to make sure of installing the latest version of Flash player. If you have installed the latest flash player properly, you do not have to worry about playing videos. If you are facing problems even after having latest flash player, then check the left hand concern of the browser, right beside the URL box. Mozilla Firefox Technical Support Turn on the flash player and video will start playing. In case of persisting problems, you need to dial toll free customer support phone number for help or assistance.