Firefox will not identify FF username account on a new installation on the new computer.

I know that I have the good username, email and password, because I'm looking at them on my laptop existing. But on the installation of 28 FF on my new computer laptop, and you try to start the synchronization process, I get the message "account unknown."
When I choose the start synchronization process on my new computer, I get this sign in the message. But I can't sign, let alone start the pairing process.
I did the front pairing process, recently, with my desktop and my laptop existing, so I know it works. Something about FF is not allowing it to recognize my correct email.
I'm on Win 8.1.
Thank you.

Please update Firefox 29,0. Firefox is passed on using the synchronization using Firefox. When installing 29,0, visit Subject: accounts in the URL bar to get started with the implementation of a sync account.

Tags: Firefox

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