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Cannot login to my account via firefox (sign in) to sync

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Hello, yesterday i'm trying MacOS (Mac Mini m2) and i cannot login in firefox to my account to sync data. I CAN login to my account on accounts.firefox.com but cannot via button in browser to sync data. I put mail + password + code from mail (i have 2FA ??) and later browser says BAD CODE.

Hello, yesterday i'm trying MacOS (Mac Mini m2) and i cannot login in firefox to my account to sync data. I CAN login to my account on accounts.firefox.com but cannot via button in browser to sync data. I put mail + password + code from mail (i have 2FA ??) and later browser says BAD CODE.