[xmonad] Automatically move Firefox download dialog

Hi folks, When I download a file in Firefox, it pops up a download dialog box where I can pick the location I want the file saved to. It pops up too far to the lower-right corner of my screen, so that I have to drag the dialog box up a bit just so I can see the "Save" and "Cancel" buttons. Is there a way to automatically move this box so that it is in a better location in my screen? I figure this would involve some sort of ManageHook; I read this http://haskell.org/haskellwiki/Xmonad/General_xmonad.hs_config_tips#Managing... but can't see how I would tell XMonad to move a window the way I can with the mouse. Thanks for your help! Omari