What happens if any message appears (neighbour wanting help, level passed, ribbon conquered, etc.)?
The application is able to close every message (unless you’ve changed the clicking speed). If it is actually working, it should close it in a few seconds. If it is idle (waiting for some crops to be ready for example, it can take some minutes). If farmville shows a message that makes facebook ask you if you want to publish info, the application should be able to close those messages and reload your farm back into fullscreen mode. Just make sure that you have your browser scrolled all the way to the top before clicking in the full screen button of farmville. If your screen resolution doesn’t allow you to view the fullscreen button when you have your browser scrolled all the way to the top, try closing some extra bars like favourites or google search, etc or put your browser in fullscreen (usually by pressing f11). Also, be aware that it may take a couple of minutes for the application to recover from this situation and put farmville back in fullscreen.