Even if curiosity is gnawing at you, consider the real-world consequences of using these tools.
No. Most tools, websites, or apps claiming to view a locked Facebook profile picture are:
No legitimate third-party tool can bypass Facebook’s server-side privacy controls on a locked profile. fb locked profile dp viewer full
There is no working, safe, or ethical method to view a full locked Facebook profile picture without being friends with the user. Any tool that promises otherwise is a scam.
Respecting locked profiles protects everyone’s privacy — including yours. If you want to see a locked profile picture, your only real option is to connect with the person directly. Even if curiosity is gnawing at you, consider
Stay safe online.
Which approach do you want?
Pick 1, 2, or 3 and any target audience (general readers, parents, journalists, developers) and desired length (800, 1,500, 3,000 words).
Many browser extensions request permission to "read and change all your data on facebook.com." Once granted, they copy your login tokens and send them to a hacker. Result: your account gets locked, spammed, or sold. There is no working, safe, or ethical method
Older tricks using m.facebook.com or basic HTML mode have been patched. Facebook now serves the same locked thumbnail across all interfaces.