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during setup sync tells me my email address is already in use and won't let me go any further. I only have one email and don't want to setup another. How do I setup sync?

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I can log into the sync account management with this URL https://account.services.mozilla.com and nothing is listed. When I go to the Sync tab within the preferences window, only two options are listed: Setup a New Account and or Pair a Device. Setting up an account doesn't allow me to use the email address I would like to, saying the email is already in use. I can't "pair a device" because the computer I'm trying to "pair" is my main computer (laptop). I used sync way back when it first came out and it seems as though there are new requirements (legal and otherwise) requiring me to setup a new account. How do I setup and use sync with the email address I have in place already without having to use another email address?

I can log into the sync account management with this URL https://account.services.mozilla.com and nothing is listed. When I go to the Sync tab within the preferences window, only two options are listed: Setup a New Account and or Pair a Device. Setting up an account doesn't allow me to use the email address I would like to, saying the email is already in use. I can't "pair a device" because the computer I'm trying to "pair" is my main computer (laptop). I used sync way back when it first came out and it seems as though there are new requirements (legal and otherwise) requiring me to setup a new account. How do I setup and use sync with the email address I have in place already without having to use another email address?

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There was a major change in Sync services back in Dec 2010, but nothing w9th regards to the Username / email address and Password since that time.

Use this to reset your Sync Password if you can't remember it, for an existing account.
https://services.mozilla.com/reset-password/

What ever you may have stored on the Sync Server will be erased so you will be starting with with new data in the system.

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Chosen Solution

There was a major change in Sync services back in Dec 2010, but nothing w9th regards to the Username / email address and Password since that time.

Use this to reset your Sync Password if you can't remember it, for an existing account.
https://services.mozilla.com/reset-password/

What ever you may have stored on the Sync Server will be erased so you will be starting with with new data in the system.