are available on the Chrome Web Store. These extensions typically add a right-click menu option to open profile or cover photos in a new tab at full size. GitHub Repositories : Developers frequently post open-source scripts like Ademking's Profile Picture Viewer
If you've already tried a "private profile viewer" tool: facebook private profile photo viewer free
A YouTube video shows a person using a "private viewer" successfully. In the description, there is a link to a "tool" or "password." The video has thousands of likes. When you click the link, you are taken to one of the above scams. are available on the Chrome Web Store
: Limits visibility to a slightly wider circle but still blocks the general public. Locked Profiles In the description, there is a link to a "tool" or "password
Some Chrome or Firefox extensions claim to reveal hidden photos by exploiting cached data or minor glitches, though these are frequently patched by Facebook.