Thanks Quinn, that's what I feared. Are there any best-practices, or additional hints, to improve compatibility? There must be some built-in functionality to allow multiple observers, because it's impossible to see who the other observers are. You can "guess", when directories have a specific name. But if another extension is watching Documents or Downloads, for example, and my extensions also wants to watch that same common directory, I'd potentially have no idea.

Thank you! This works great adding ' && "ontouchend" in document'