I’m having sort of a similar problem. I’ve got the latest version of FF and am trying access a remote mount from an XP system.
I’ve tried mounting the remote drive two different ways:
1) Mounting to a drive letter (e.g. X:mp3)
2) Mounting directly to the share (e.g. \hostmp3)
In both cases, the standard Windows version of FF doesn’t find any songs.
But here’s the weird part. If I run the debug version of FF, it finds all of the songs!! And, with either method 1) or 2) as described above.