Within Galeon, click on a link to a file you wish to download, like a .tgz
file from sourceforge. Dialog pops up to download the file using the
filename derived from the link.

If the user clicks on a directory within the dialog with intent to save the
file in that directory, the filename disappears from the dialog, forcing
the user to re-type it in manually. There is no way to surf directories in
this dialog without losing the filename. 

I recall this same bug from Unix releases of Netscape 4 and before.