The company defines the system for users directly controlling such data, for example where a clothing website shares information with Facebook on browsing activity of a user, as “Off-Facebook Activity”. “We are starting by gradually making Off-Facebook Activity available to people in Ireland, South Korea and Spain,” Facebook executives said in a blog post.

source https://finance.yahoo.com/news/facebook-users-see-control-personal-153401715.html?.tsrc=rss