Totem/Firefox plugin mishandles mpeg and mov files

[Albert]

In Breezy, Totem as a Firefox plugin cannot handle mpeg or mov files, 
although standalone it can play both.  With mov files, it plays a few 
frames then goes black.  If you then try to go back a page, the browser 
intermittently crashes.  With mpeg files, it does one of two things:

(1) black page with popup: "Totem could not play 'fd://0' There were no 
decoders found to handle the stream, you might need to install the 
corresponding plugins"

or (2) it plays a few frames then goes black.