1 Open your web browser.
2 Go to the Facebook home page.
3 Click the Home button’s drop-down arrow from the top right corner of the screen.
5 Locate the “Username” section of the page that follows. Towards the very far right of that Username line, you’ll see an Edit link.
6 Click the “Edit” link.
8 Type your proposed new username into the box.
9 Wait for the check mark to the right of the box to say that the username is not in the database yet.
10 Click into the “Password” field.
12 Click the “Save Changes” button to save.