Problem with Quicktime?

When I try to listen to a video or audio file on Quicktime that's on the Internet, the bar moves like 1/3, 2/3, finish, and hardly shows anything. This happens for both Firefox and Opera, have tried restarting~

Problem with Quicktime?home theater

try going to quicktimes

official site and seeing if

they have any tutorials

on how to fix this problom

or you may need to update it

Problem with Quicktime?comedy club opera theater

uninstall current running quick time

and download update version and re-install it.