Go to www.Facebook.com and log into your account

Click on your photo at the top right of Facebook

Next, click on “Settings and Privacy”

Then, click on “Settings”

Then, on the left side Settings menu, under Meta Accounts Center click on “Personal details”

On the right side you will see all your associate profiles

Next, click on each of your profiles to view Name, Username, and Password,

To edit, simply make your changes in the field, then click on “Done”

To add or delete, follow the prompts

Open the Facebook App

Tap menu at the top right corner for Android users, or at the bottom right for iPhone users

Tap the gear icon at the top right next to the magnifying glass

Then, under Meta Accounts Center tap on “Personal details”

Then tap on "Profiles"

Next, tap on each of your profiles to view Name, Username, and Password

Then, tap on each item to view or edit

To edit, add, or delete, follow the prompts