Access from script denied error

[Flaring]

I've got the following problem:


E.g. if enter this in address bar it opens folder contents "file:///C:/program%20files/",
but i can't use it in window.open(..) or href="..", i get the following eror:

Error: Access to 'file:///C:/program%20files/' from script denied
Source File: javascript:window.open('file:///C:/program files/', '_blank', 'status=yes,toolbar=yes,menubar=yes,location=yes,scrollbars=yes,resizable=yes,directories=yes,width=750,height=560');
Line: 1

It works fine in Opera or IE, but not in Mozilla. What's the problem?

Thank you in advance!