Private browsing doesn't help with this type of tracking. You need to use a browser or a browser add-on that blocks Facebook as a third-party connection. So if

Private browsing doesn't help with this type of tracking. You need to use a browser or a browser add-on that blocks Facebook as a third-party connection. So if any site or app has a Facebook pixel that sends data back to Facebook it will block it from doing so. Alternative is not to use Facebook.