Here’s a quick guide to viewing and saving a Facebook profile picture in full size (original resolution), not the small thumbnail. Method 1: On a Computer (Browser) Step 1: Go to the profile of the person whose picture you want.
Click on their current profile picture (the image itself, not the “camera” icon if it’s you).
A pop-up lightbox will open. By default, Facebook shows a medium-sized version (around 480×480 or 720×720 pixels).
Find the profile and tap the profile picture.
Once the image opens, tap and hold (iOS) or long press (Android). Step 4: Select Open image in new tab .
Open Safari (iOS) or Chrome (Android). Go to m.facebook.com (mobile web version).