UNC Paths to network drive does not open a batch file.

Hi All, i am having a problem where i cannot open a link to batch file on the network drive in FF even with the latest v18. I have the following paths to the network drive and under IE it opens the link and prompts for me to Run/Save/cancel on File Download - Security Warning window but not FF, nothing happens in FF.

A work around is to apply few plugins (opendownload.xpi and opendownload2-3.2.1-fx+sm.xpi) to user ff settings and it works. It is not a good workaround because the respective settings varies from users to users.

current configuration:

copy of the link: file:///T:/xx%xx%xx/xx/xx.bat under my computer the path is: T:\xx xx xx\xx\xx.bat

Thank you.