"YouTube tutorials" often direct you to install a Chrome extension for a "Profile Viewer."

You click "view now," and a pop-up says, "Complete one quick offer to unlock the viewer." You complete a survey, a credit card form, or download an app. The scammer gets a commission, and you get nothing but spam emails.

Some users prefer extensions like the Profile Picture Viewer for Chrome, which allows you to right-click any PFP to see it in full size. Conclusion

Facebook provides profile picture URLs that follow patterns like:

If the site doesn’t ask for a login, it will ask you to install a "browser extension" or "desktop viewer." This software is often bundled with keyloggers, crypto miners, or adware that hijacks your browser.