Thunderbird Community Forum

I'm using a mailbox.org account with TB. I'm receiving messages from it, so I'm logged in, but TB keeps asking me every so often to login again, and it has three popups in a row each time. How do I turn this off?

I set up thunderbird exactly the same as on my old computer -- i cannot retrieve my emails on the new computer even though the test connection was successful - but i get a pop-up saying autentication failed when i try to get my emails on my new computer, Old computer still gets them

2026 09 07

Mozilla Support.

Dear Sir,

I have operated my email

redacted@malcolmgmiller.biz

for many years.

I have forgotten my password and been unable to receive or send emails for some time. I do not know how to access the change your password page without knowing my password.

I do have my customer number but that did not grant me access.

Please assist me in reestablishing my account.

Yours faithfully,

Malcolm G. Miller.

redacted@malcolmgmiller.biz (Not operational) redacted@aol.uk (Standby email account)

I keep getting "authentication error" when adding a new email account with Infomaniak, even when I use the app generated password. I am not having this problem with Outlook. I cannot disable Account Hub (1 suggested solution) in Thunderbird 157. what to do?

At one time, I was able to access my email with Thunderbird. Then Thunderbird stopped working, and I didn't have time to research why. Monday, I bought a new Macbook. After installation, Thunderbird says "account settings found." Then it asks for a password. My password no longer works. Instead, I get a message: "Authentication failed. Unable to log in at server. Probably wrong configuration, username or password." What, if anything, can I do?

Since updating to TB 153esr from the previous esr, I occasionally get a server authentication error with imap.gmail.com. Most often they happen when first starting up, but occasionally seem to happen at other times. They seem to be transient as gmail works fine otherwise.

Just wondering if this is a known bug?

I have went under passwords and I have edited the password I have changed it three times I have edited it three times I am about ready to pull my hair out what is the secret to getting these new passwords to work. Please help me. PLEASE. Thank you ever so much. I just keep getting a window that pops up that keeps telling me to enter my password I enter it and hit okay then the next window opens and it says enter new password this is driving me nuts help me please. please answer to [redacted email from public community support forum] because my other email don't work

My email account is handled by a university that uses Office 365-based Microsoft system for email accounts. My institution now requires that email client programs us MS Graph for authentication. Does Thunderbird 156.0.1 have this capability?

Hello. i have latest beta 156.b3 64bit, after updating to beta 3 my tb offer retry passwords to many google acccounts and opening FireFox for again login in to each account. I have turned off checking mails on the start up for them and turn off checking mails, but again and again opening firefox for signing in. i closing firefox but TB not continue checking mail from another mailboxes, they stopped and seems like waiting for signing. i try to manually click for each mailbox "get message", but this no work, could you help me turn off login through firefox?

I downloaded Thunderbird on my new Windows 11 laptop and began setup by entering my full name and email address ([redacted]@utexas.edu, operated by Gmail). The next screen asks for my "email account password." I entered my Google password that allows me to access my email at Gmail (https://mail.google.com/mail/u/0/#inbox). But "Authentication failed," and I am stuck! I cannot finish installing Thunderbird. I have used Thunderbird for many years on my prior laptop (Windows 10).

Thunderbird ver 115.18.0, on a Win7 machine, upgrading not an option

When opening Thunderbird I get a sign-in message, inserting my email address and clicking the next button I get the google error message.

Out of the blue Google started blocking one of my Gmail accounts on Linux Mint. It's been running fine for months. The rest run fine. It kept giving me this error message.

400. That’s an error.

The server cannot process the request because it is malformed. It should not be retried. That’s all we know.

I installed that account on my windows box with exactly the same information. I cut and pasted it in fact. It went right through with no problems.

It's one of my main accounts and it's dead in the water. I deleted it and tried to reinstall it and I have exactly the same problem. Setup information. Hit continue. "Configuration found" Click done. Goes to "Sign in to continue to Mozilla Thunder bird Email" Put in email address. Click next and I get that error message. Help?

Captain Quack.

Hello,

After moving my Thunderbird profile to a new computer none of my accounts can authenticate. I followed the instructions here: Move Thunderbird data to a new computer, using "An alternative method for manual transfer between Windows 10 and Windows 11 computers." What explains the response in the attached image, "Something went wrong," and how can I fix it? Happens when I click "Next", the first step to log it.

I have a related problem with other accounts set up in the profile. This one is using Oauth2. I tried switching to password, and hand a similar problem. I tested the connection to the server in Settings for the account and it was successful. Same for the others. They all authenticate successfully on my old computer.

Thanks...

I have been getting this message when I try to log in to my Thunderbird mail for over a week: "accounts.google.com needs you to confirm access again to keep syncing with your account. Username: soprisue2@gmail.com."

I am afraid the message is Spam, so I hesitate to click on it, but if I delete it or X it out, it goes to another screen that doesn't let me click on anything. Eventually I get a message that Thunderbird is not responding, and I close it.  I am basically locked out of my mail access through Thunderbird.  Please help me.

I cannot access the Thunderbird app menu to find out what version of Thunderbird I am using, so I guessed.