For what ? Sync ? This is all I have on Sync : *https://support.mozilla.org/en-US/kb/how-do-i-set-sync-my-computer *https://support.mozilla.org/en-US/products/firefox/sync *https://support.mozilla.org/en-US/kb/how-do-i-choose-what-types-information-sync-firefox *https://support.mozilla.org/en-US/kb/firefox-sync-troubleshooting-and-tips *https://support.mozilla.org/en-US/kb/change-primary-email-address-firefox-accounts There is contact info in this and yes do have to create a account and wait : https://support.mozilla.org/en-US/kb/forum-response-firefox-sync-verification-email-faq

Hi there, All of the information linked to is accurate for sync in general, however to help we might need a little more information what is happening after you enter the email address. Are you receiving an email with a link as well? Can you send me a private message so we can test your email address? Are there any error messages that you are seeing? Thank you, and I am looking forward to your reply.