I cannot open a video files (.mp4, .mov) that is sent via email. It tells me to download various programs. I must download the file to my desktop and then it will play. I use windows media player and it works fine, but it will not work if it is attached within an email. It seems that this problem exists with a lot of users and othes just put up with it. I quit using Chrome and thought FireFox would be different Please see my attachment. Any suggestions? Thank you.