For quite some time now Firefox ( all recent versions ) are providing the buttons to activate Flash even on web sites without any flash content. I know there is no content because many of the sites I built myself and have not added any flash content at all. No active components. No banners, No Google ads etc. Just Joomla which is all php. How can I configure Firefox to stop asking me to approve Flash on sites that do not have any such content. Is this a bug where Firefox is being fooled into thinking Flash is present?