No. The Facebook mobile app disables long-press saving and screenshot detection for locked profiles. However, on Android, screenshots still work (they just show a low-res preview).
: A free tool where you can paste the URL of a specific photo or profile post to download it in HD without watermarks. Apify Facebook Pages Scraper
Have you successfully downloaded a locked profile picture using a different method? Share your experience in the comments below (but keep it ethical!)
: Sites like SaveThat allow you to paste a profile URL to retrieve the full-size image.