The nsIDOMPopupBlockedEvent interface is the datatype for events
 posted when a popup window is blocked.
[scriptable, uuid(05be571f-c3ea-4959-a340-c57b1591ae4b)]
interface nsIDOMPopupBlockedEvent : nsIDOMEvent


 The string of features passed to the call
 (as the third argument)
readonly attribute DOMString popupWindowFeatures
 The window name passed to the call
 (as the second argument)
readonly attribute DOMString popupWindowName
 The URI of the window that was blocked.
readonly attribute nsIURI popupWindowURI
 The window object that attempted to open the blocked popup
 (i.e. the window object on which open() was called).
readonly attribute nsIDOMWindow requestingWindow


void initPopupBlockedEvent(in DOMString typeArg, in boolean canBubbleArg, in boolean cancelableArg, in nsIDOMWindow requestingWindow, in nsIURI popupWindowURI, in DOMString popupWindowName, in DOMString popupWindowFeatures)