Bug 882188 - Popup notifications in background windows should only ask for attention if they'll open automatically upon gaining focus. r=gavin

toolkit/modules/PopupNotifications.jsm

@@ -264,7 +264,8 @@ PopupNotifications.prototype = {
       // tell the user that there's a notification waiting in that window.
       // At some point we might want to do something about background tabs here
       // too.
-      if (browser == this.tabbrowser.selectedBrowser)
+      if (!notification.dismissed &&
+          browser == this.tabbrowser.selectedBrowser)
         this.window.getAttention();
 
       // Notify observers that we're not showing the popup (useful for testing)