The drop down menus ("My PF", "Inbox" etc.) are very irritating when the display is showing only the compose-a-reply editing field on the screen (in Firefox). Clicking on that part of the screen doesn't dismiss the drop down menus. ESC doesn't dismiss them. There is a thin bar at the bottom that you can click in and dismiss them, but that is tedious and the bar isn't always visible if the reply is lengthy.