Overlays often have ask users to like some page on facebook, or to subscribe to some mailing list, it's not advertising. But you need to make a click to close it.
uBlock and AdBlockPlus make them go away, at least on website I frequent.
And facebook is one of those questionable ethics organizations I mentioned. The mere existence of a "Like" button (whether you click it or not) in 99.99% of the cases already gives facebook all the info about your surfing habits.
And facebook is one of those questionable ethics organizations I mentioned. The mere existence of a "Like" button (whether you click it or not) in 99.99% of the cases already gives facebook all the info about your surfing habits.