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When I try to sync my mobile browser to my computer browser, It says my E-mail address is already in use. Then when I tried to sign in under that E-mail addres

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When I try to sync my mobile browser to my computer browser, It says my E-mail address is already in use. Then when I tried to sign in under that E-mail address, it says the password or user name is incorrect. I already reset the password and tried again, still with no success.

When I try to sync my mobile browser to my computer browser, It says my E-mail address is already in use. Then when I tried to sign in under that E-mail address, it says the password or user name is incorrect. I already reset the password and tried again, still with no success.

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Close the firefox, restart your mobile and try it..

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Close the firefox, restart your mobile and try it..

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If you are trying to add a new device to your Sync account, see this:
https://support.mozilla.org/en-US/kb/add-a-device-to-firefox-sync

Pair a Device is usually the best way of adding a mobile device to a Firefox account.