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Problem: I cannot connect to gmail via Thunderbird with 2 step verification.

Problem: When I try to connect to google mail via Thunderbird, Enter credential for my_email_account  dialog shows up,  but I cannot push the `Next' button. Well, I can push it, but nothing happens.

It seems the authentication method "OAuth2" related with this problem.

Solution: Authenticate with "Normal password", using the google  app password, not use the google account password, and watch the connection activity to check the any suspicious activities.

But I feel this is not good and check further....

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