It'd be nice if I could set PopUp Killer to ignore
simultaneously both the URL and title per popup. I
think it would be more powerful that way.
In the PopUps tab, you might add a confirmation
dialog when double-clicking, asking if the user wants to
ignore the title, the URL, or both. At this point,
wildcards could be entered. You would want to edit
the Add PopUp dialog if you did this, too.
You would also want to edit the Smart! Safe Mode
confirmation dialog in a similar manner, or call the
double-click confirmation dialog from here.