Two windows open in Firefox 3
When you click a page or a link that opens a dialog in the author environment using Firefox 3.x, two windows open.
As a quick workaround, comment the line
/libs/CFC/templates/Admin/List.esp (or if you overlayed look in
...... // --- workaround for firefox behavior --- if (!ie4) location.href=myLinks[fini].link.href;