Hello howardfromlafayette,
It sounds like you need to validate your credentials while using a new browser. If so, check out the steps to sign in below and found in the helpful guide here: Sign in to an account on your Mac with a passkey - Apple Support
"Sign in to an account with a passkey
- On the account sign-in page, enter your account name, then click the account name field.
- Click your account in the list of suggestions.
- Do one of the following:
- If you have Touch ID on your Mac: Place your finger on the Touch ID sensor.
- If you have an iPhone or iPad: Click Other Options, click “Passkey from nearby device,” then click the QR code.
Note: Bluetooth must be turned on in Settings > Bluetooth for your iPhone or iPad. Bluetooth must also be turned on for your Mac. See Turn Bluetooth on or off on Mac.
- External security key: Click Other Options, click “Security key,” then follow the instructions onscreen."
You can also check your password account details for the website using the steps here: View your website passwords and related info on Mac, and ensure your account information is correct and saved with the steps here: Sign in with passkeys on iPhone - Apple Support
Cheers.