Want to change the small thumbnail version of your profile photo?
1. Go to your Facebook profile (Top right of the page).
2. Hover your cursor over your profile photo and you will see Change Photo. Click on that and your current profile photo is displayed.
3. Below your photo you will see a link, Edit Thumbnail. Click on Edit Thumbnail and change it to what you want to display!
Thanks Mary for the great question! 🙂