GlassFrog currently has two ways to add an image to your profile.  

Option 1: If you have not linked your GlassFrog account to your Google account, then you will need to upload a picture of your own.  Navigate to your profile page by clicking on your username.  See screenshot.


Option 2:  Link your GlassFrog account to your Google GMail account on the sign in screen by logging in with Google Sign-in. This will signal GlassFrog to being using your Google+ profile image.  Note: This may require you to sign out by clicking "Sign out" on the top right menu.  Sign in page: