transfer authenticator app
How to I transfer my Firefox soft token for Google Authenticator from my old phone to my new phone?
How to I transfer my Firefox soft token for Google Authenticator from my old phone to my new phone?
Opaite Mbohovái (1)
Disable 2-step authentication for your Firefox account.
Enable 2-step authentication again for your Firefox account. https://support.mozilla.org/kb/secure-firefox-account-two-step-authentication
Use Google Authenticator on the new phone as authentication app.