All things come to an end :/
The Data Selfie server will be shut down on July 1, 2018. The extension can still track your activity for you, but won't give you new predictions.
Read more about it here.
Get back your Facebook data.
Data Selfie is a browser extension that tracks you while you are on Facebook to show you your own data traces and reveal what machine learning algorithms could predict about your personality based on that data.
The tool explores our relationship to the online data we leave behind as a result of media consumption and social networks - the information you share consciously and unconsciously.
Important: The maintainers of this project don't keep a data base of user data.