To develop a feature for downloading Facebook private profile pictures, you must navigate technical barriers like Facebook's Profile Picture Guard [11] and legal frameworks like the Digital Millennium Copyright Act (DMCA)
I tested this method/tool out of curiosity. While it did manage to download a low-resolution version of a private profile picture (essentially the same thumbnail visible to non-friends), it did retrieve the original high-resolution image. Download Facebook Private Profile Picture
Press Command + Shift + 4 and drag the crosshairs over the image. To develop a feature for downloading Facebook private
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Facebook Messenger handles profile images slightly differently than the main social media platform. If you have previously exchanged messages with the user, or if their account allows message requests, you can pull the image from there. (no padlock icon) Facebook Messenger handles profile images
The internet is full of "Facebook Profile Picture Downloader" sites.