santarosajoe said

how do I change my Firefox Sync username of my "Managed Account" ?

Hello santarosajoe,

Would you please take a look at these articles :

https://support.mozilla.org/en-US/kb/change-primary-email-address-firefox-accounts

and :

https://support.mozilla.org/en-US/kb/add-secondary-email-address-firefox-accounts

You can't change the user name of the Sync account as used on this forum. you would have to contact a SUMO administrator to change the user name used on this forum. You can only change the display name that shows next to the question in your SUMO profile.

The Firefox Account login page uses an email address to login.

• https://accounts.firefox.com/signin
• https://accounts.firefox.com/settings