Follow the instructions below to setup your Facebook Cover Photo:
Step 1: Right click the image above and select “save image as”
Step 2: Log into Facebook and view your profile.
Step 3: Highlight over your current Facebook Cover Photo and select “change cover”
Step 4: Select “upload photo”
Step 5: Browse to the image you saved and select “open”
Step 6: Position your Facebook Cover Photo and select “save changes”