This is where you pose direct questions and it takes the Sync Servers time to do this. As well you are changing a primary email address which is a security issue and may have to be reviewed by hand.

If you need information off the other computer then ask about it and see what we can do yo help you such as https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer

Please let us know if this solved your issue or if need further assistance.

Thanks for responding - I dont get the advice here- do I wait a while and see whther the changes I requested happen in a while - like a day or two? The link you sent above does not appear to have relevance

Correct the link does not have relevance unless you can walk over to the other computer or the phone and do what it says to get any info you may need in a hurry since said it was costing you time. Above is a solution to getting data.

As for sync I guess you wait and do not email or any thing as it will lock you out for good so if have pressed stuff more than once you can start screaming now.

Then read this : https://support.mozilla.org/en-US/kb/forum-response-firefox-sync-verification-email-faq as shows how to contact.

Please let us know if this solved your issue or if need further assistance.

I called an Administrator.

Hey there, Thank you for your question about being able to switch the primary email of your Firefox Sync account. Currently, this does not appear to be a feature in the release version of Firefox.

Currently you would have to removed the account from each device, delete the account, then sign up with the second email address.

I didn't realize we had an article on this! After adding a secondary email the special link in the following article made the button appear for me in the Firefox 59 "Nightly" test version, and I was able to switch the address and switch back:

Change primary email address on Mozilla account

I didn't log out and log back with the new primary address...