Quote Originally Posted by fink View Post
Try disabling Winamp application detector in tools>addons>plugins. Also, if Winamp is your default player for MP3's then try switching to Windows media player instead at least temporarily to see if that makes a difference.
There are no references to Winamp in the plugin list. Made WMP mps default. Makes no difference.

I have 3 computers. Late last night I installed Firefox on another of my computers also running Win XP SP3. The download behavior is EXACTLY the same. No progressive downloads. All files download in their entirety and play only when the download is completed.

I wonder if someone here would go on line and left click a large mp3 file and a large wmv file and see what happens. I think the behavior I am experiencing is (hard to believe) exactly the way Firefox was designed to run. Even my iPhone will stream an mp3 file from a usenet music group.