Getting Feedback on New Tools to Protect People's Privacy - About Facebook
Today, we're announcing plans to build Clear History. This feature will enable you to see the websites and apps that send us information when you use them, delete this information from your account, and turn off our ability to store it associated with your account going forward.
1 May 2018 ... We also use this information to make your experience on Facebook better. If you clear your history or use the new setting, we'll remove identifying ...