UNC addresses do not work

An UNC address of a file, like
    \\servername\folder\index.html
does not work. This is a legal file path and Firefox rewrites it thus:
    file://///servername/folder/index.html
Amaya also rewrites the address in a way that never reaches the seeked file, something like:
    C:\servername\folder\index.html
Also, entering the file rewritten by Firefox does not brings the data but a "Not Found" error.

All operating systems can read UNC files, including Windows.

Juan Lanus
TECNOSOL
Argentina