Bug#710563: firefox print -> save to file folder can't distinguish directory

[jidanni at jidanni.org]

Package: libgtk2.0-0
Version: 2.24.18-1

https://bugzilla.mozilla.org/show_bug.cgi?id=874355 says "This dialog is
not provided by Firefox but is a GTK dialog. Please report this bug to
the GTK project or your particular Linux distribution."