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recover user name from previous account

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When i installed and tried to create an account firefox said I'm already registered but would not give me my user name.however it did let me change my password using my old email so i had to create a complete a new account

When i installed and tried to create an account firefox said I'm already registered but would not give me my user name.however it did let me change my password using my old email so i had to create a complete a new account

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Click the menu button and choose Options. On the Sync tab, click Sign in to open the Sign in page. On the Sign in page, click Forgot password? Firefox will send you a reset email. Follow the instructions in your reset email to change your password. Now you're ready to go. Remember to update your password on each of your synchronized devices by following the steps below:

Click the menu button and choose Options. On the Sync panel, click on Sign in to open the Firefox Sync page. Enter your new password and click Sign in.