After your initial username change you are only enabled to change it when, inning accordance with the rules and standards of Facebook.
How To Find A Facebook Url
Get a New URL.
Action. 1 Log in to Facebook.
Action. 2 Clear the URL bar, and enter "www.facebook.com/username." Select from the list of readily available names, or check the box next to the empty field to enter a customized username.
Action. 3 Click the "Check Availability" button, and click the "Verify" button to complete the procedure.
Modification Your Existing URL.
Action. 1 Click the "Settings" button at the top of the Facebook website.
Action. 2 Click the "Change" link next to the "Username" section. Highlight your existing user name and press the "Delete" or
"Backspace" button to erase the existing name, and type in a new username.
Action. 3 Click the "Check Schedule" button, and click "Verify" to finish the switch How To Find A Facebook Url.