This haas been happening for th epast month or two. I have uninstalled FF, rebooted, reinstalled -- no success. I have unistalled FF and all data / settings -- same result. Files download (I select where); they download, seen in download window and on hard disk. Clear download window and close it. Files still on HD. Close FF and they disappear. If I move the downloaded file to another location before shutting down FF, then it does not disappear from the new location, but does disappear from the downloaded location! Same happens whether default download location; with and without private settings. Can any one please resolve this?