Once the basic site loads, navigate to the profile picture.
While you cannot "force" a private profile to become public, these are the legitimate ways to see a profile picture in higher resolution: Method How it Works Limitation view private facebook profile picture work
Future studies should investigate more robust methods for protecting profile pictures while maintaining usability. Additionally, researchers should explore the boundaries between legitimate and illegitimate access to private content on social media platforms. Once the basic site loads, navigate to the profile picture