Logged into google but thunderbird claims authenication failed
Filled in email and password, google pop up asked for email and password and sent a confirmation request to my phone which I accepted but thunderbird still says authentication failure
Soluzione scelta
Since you're on Linux, you may not have the version, 60.9.1 or 68.2.1, that fixes the Google OAuth issue. In the meantime, there is a workaround.
Edit/Preferences/Advanced/General/Config. editor, double-click general.useragent.compatMode.firefox to true.
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Please post your Troubleshooting Information.
At the top right of the Thunderbird window, click the menu button 
, then select Help > Troubleshooting Information.
Press the "Copy text to clipboard button" and paste the information into your reply.
Hi Thunderbird needs to use the same password that you use when logging in to your email online. You mention Google, so I am guessing that yours is Gmail? After you went through the password confirmation with Google, did you enter the same password in Thunderbird? Thunderbird might be 'remembering' a previous password that no longer matches your Gmail account, and needs the new password. Hope that helps, Agnes
Soluzione scelta
Since you're on Linux, you may not have the version, 60.9.1 or 68.2.1, that fixes the Google OAuth issue. In the meantime, there is a workaround.
Edit/Preferences/Advanced/General/Config. editor, double-click general.useragent.compatMode.firefox to true.
Ok that fixed it thanks all
christ1 said
Please post your Troubleshooting Information. At the top right of the Thunderbird window, click the menu button
Paste the info into your reply- I don t know what that means