Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

unable to create account in Firefox Sync Setup "unknown error" when entering User Name (lower case alpha only)

more options

when entering User Name in Create Your Sync Account, Red X with error message "Unknown error" appears below User Name field

User Name contains only lower case alpha characters

Password, Confirm Password & e-mail appear to be accepted

"Next" button is greyed out so I am unable to proceed.

Help will be appreciated

when entering User Name in Create Your Sync Account, Red X with error message "Unknown error" appears below User Name field User Name contains only lower case alpha characters Password, Confirm Password & e-mail appear to be accepted "Next" button is greyed out so I am unable to proceed. Help will be appreciated

All Replies (2)

more options

This only occurs with user names that are all lower-case. Until this is fixed, add a capital letter to your desired user name.

more options

that fix no longer works