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I update Thunderbird/linux to v.130 over a year ago, implementing oath2 with gmail. I do NOT want to do more updates because with each previous update I lose desired capabilities; I did this update only because of gmail's authorization requirements.

Worked fine for a while and then I started getting "authorization error" messages and could no longer access this account with Thunderbird. I have over 20gb of stored messages on my computer and do not want to do anything that will jeopardize this -- I generally delete all messages at the server. Google is of no help other than suggesting deleting and then somehow restarting the account. No. Someone suggested switching the account from oauth2 to password and then switching back again, but I am reluctant to do anything that might lose my messages. I can backup the entire profile, of course, but that just gets me back to where I was.

I went through the reauthorization process with gmail, including getting the 6-digit code, but the error still exists. I've been forwarding mail in this account to another account, but I'd rather go back to the REAL account. Help!

I am trying to migrate my Thunderbird account from PC Windows 10 to a new PC Windows 11. The installation selects my provider and settings correctly but when I try and sign in, I get the above message. I have not the first idea where to start there. any help would be appreciated. I still have a copy on a windows 11 laptop that I can use to enter settings, but I can't get that far with the installation. Any help would be greatly appreciated.

Since 2 days ago, Thunderbird has been asking me to authenticate each of my email accounts. I had done them twice already, but if I have to do it each day, Thunderbird becomes useless to me. How do I resolve the issue? Thanks!

I can't log into an email from my health site called MyMercy to get lab reports, etc., using Firefox; Have to switch to Google Chrome to do it. Is Firefox aware of this issue? Please respond [edited email from community support forum]

I have used Thunderbird for years but mid windows 10 I started having this problem I have all my user name & Password in a note pad for all places I go to.I'm on Winddows11 home.Also I can't sign in so I can;t Tell you what Version I have.

I'm being threatened by email with closure of my account unless I sign in by clicking a button in the message. As far as I can tell, I am signed in. So these emails are fraudulent?

Hi, I have multiple email accounts. To access the passwords there is now a prompt asking for an email and password- some 'identity'.

How do I know/guess what that might be?

v128.14

Thanks David Lawrie

I can't add my Yahoo Mail account because of an authentication error.

The following message is displayed: "Authentication error Can't sign in to the server. Please check your username, password, and settings."

The authentication method "OAuth2" does not appear.

I can sign in and receive mail with the same ID and password in a web browser.

Thank you for your help.

I have a new computer and I am loading my email accounts into TB. One of them loaded perfectly but the outlook account has been trouble. I have read several forum questions/answers and tried all of the suggestions with no help. I will attach a screen print of the page I get when prompted to enter password credentials. I cannot go further until I can get TB and Outlook to communicate so I need help. I don't want to use Outlook as an email server if possible.

Thunderbird 148+ on Windows 11 repeatedly prompts for the password when synchronizing an Exchange account (professional) configured with the native Exchange support (no add-on installed).

The account only offers “NTLM” or “Normal password” authentication methods. OAuth2 is not available in the account settings.

During synchronization, Thunderbird asks for the password separately for many folders. However, clicking “Retry” usually works immediately without changing the password, and manually re-entering the same password also works.

The issue then reappears for the next folder, causing continuous authentication prompts (I have many folders...).

Actions already tested:

• deleting saved passwords and tokens,
• deleting/renaming key4.db and logins.json,
• restarting Thunderbird,
• recreating the account.

The problem persists.

This looks like an authentication/session handling issue rather than an actual invalid password.

I have a large number of email accounts configured in Thunderbird, roughly 20 or more.

Occasionally, one of the accounts needs to re-authenticate or re-enter its password. When that happens, Thunderbird opens a password/authentication dialog, but the dialog does not clearly tell me which configured email account triggered it.

With only one or two accounts this might not be a serious issue, but with many accounts it becomes very difficult to know which account needs attention. I may see a login prompt, but I do not know whether it belongs to a reg@r...p.com or work@r...p.com, or jobs@r...p.com, or hello@r...p.com, and so on.

I get it, outgoing SMTP servers can be shared or associated with multiple identities/accounts. In my setup though, each outgoing account is effectively one-to-one, and I still have no practical way to tell which email address the login prompt is for.

Even when an outgoing server is shared by more than one account, it would still help if the prompt showed the related a list of the accounts/identities connected to that outgoing server.

In Thunderbird a password for an email account was deleted from the password list, but then how is a new password applied to that same mail account? I'm only getting error login messages with no apparent field, or opportunity to enter a new password. I'm concerned starting fresh and deleting the email account itself will delete all my saved emails associated with that account.

I just bought a new desktop computer. It is a Lenovo using Windows 11. I downloaded Thunderbird (.exe) and attempted to install. The installation program does not recognize my credentials. I get an error message that says "Authentication error. Unable to log in at server. Probably wrong configuration, username or password." I have tried every variation I can think of, but no luck. I enlisted Best Buy Geek Squad, and over 2 hours later they have determined that the computer itself has no problems--it is Thunderbird that is refusing to recognize my credentials. I have 4 other devices--2 Iphones, an Ipad, and a laptop using Windows 10, and all have been, and still are, using Thunderbird with no issues. How do I get Thunderbird to recognize my credentials, which are valid on 4 other devices?

I recently moved from Microsoft Outlook email to Apple icloud email. icloud allows you to create an application-specific password, which I did for email. It works; I can login to email on Thunderbird using my (impossible to remember long) password automatically generated by Apple. I switched the Thunderbird server settings to OAuth, but unlike with Outlook, there was no popup saying a restart of Tbird is required. When I quit Tbird and restarted, it did not prompt for a pw, but neither did it get any new messages. (I sent new messages from another email service to verify.)

I also noticed that OAuth2 was not an available option for the outgoing server, as it was with Outlook.

Does OAuth2 not work with icloud email?

There appears to be no way to change the app-specific icloud pw in Apple, but I will take that up with Apple.

Perhaps the workaround is to use the Tbird saved pw feature?