Visi produktai Community Forum

Haven't been able to get into Thunderbird since 9/26/26, every time I try it keeps asking me for my password. I key it in and it does the same thing. I have had someone to come up and

look at it, but they weren't familiar with thunderbird, I have been having to use Kinetic email, don't like it. hate gmail.

Yesterday I integrated my email into the desktop using my email as the user and my password. I also downloaded the mobile app for Thunderbird on my Android upon which I was not able to use either the user or the password to log on. The response was simply I do not have an account. Trying to mitigate this. Thank you - Brian

Hello,

I'm moving to Graph from EWS and have followed the instructions at: https://support.mozilla.org/en-US/kb/microsoft-ews-graph-migration

I get through to screen that offers Graph API as an option, alongside IMAP, POP3 etc, and click on Graph API which directs me to my browser to log in to my email service (via GoDaddy). I log in successfully which takes me to the Thunderbird 'You're All Set' screen saying the account has been securely connected to Thunderbird and therefore ok to close that screen.

Back on Thunderbird it then progresses but returns with "Authentication Error - unable to log in at server. Probably wrong configuration, username or password".

The username and password are correct, and there aren't any other options available when editing/manually configuring the connection...so at a dead end, alas.

Any pointers much appreciated!

I'm suddenly being asked for "primary password." I put in what I thought it was (from many years ago). Did not work. Unsuccessful at trying to change to a new one because Firefox keeps demanding my "primary" password. This started suddenly yesterday, 10/12/26. What is going on and how can I set a new primary password, or bypass that requirement. I never needed to enter any password before, and this is driving me crazy. Please reply email [redacted email from community support forum], or fix the program so it stops asking for a password and reverts to how it was before . I saw and installed the latest update, but it is still a problem. Thank you. Rich Palmer

Hi, since beginning of October 2026 I cannot access my multiple AOL-accounts in Thunderbird under Windows 11. I am prompted to the AOL page, insert PW but at the end: "an error occurred". The PW is valid; I can log in to the aol-accounts on the AOL-homepage.

I already set all methods to OAuth2 and set usePrivatBrowser to true as mentioned in the forum; but it does not work. Any ideas?

Short problem description: Gmail auth is running before the master password dialogue

Long description: When starting up, Thunderbird runs Gmail auth before the master password dialogue. This leads to a failure of the login when the user does not enter the password in time. The access token is not unlocked, auth fails, and a browser window will pop up with the gmail authentication dialogue, necessitating further user interaction and generating extra mails because TB will be reconnected with a regenerated token.

Expected behaviour: Authenticating email accounts being delayed, until the secret cache is unlocked with the master password.

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?

Hello,

There is apparently a bug in the latest release of Thunderbird, which has broken the callbacks for Yahoo! IMAP email using OAuth. Potentially, it may actually be a problem with Yahoo!, and how https://api.login.yahoo.com is attempting to reopen Thunderbird after logging in, as the process has changed. I've already reverted back to the ESR Thunderbird channel once, but on a recent update the issue was reintroduced. Screenshots are included.

Thanks for any assistance.

I had to reinstall Thunderbird after doing a clean install of Windows 11.

Since installing, the expected login popup for Gmail doesn't appear. I get the attached error message instead.

Yahoo worked fine after a few tries. What is the problem here, and how can I fix it?

I have multiple email accounts on Thunderbird (on MX Linux)... att.net, gmail.com and aol.com

While traveling without my computer, i had to reset my aol password on my iphone.

Now that I'm back at my desk, and being unable to find how to change the aol password on Thunderbird, I deleted the AOL imap account and have tried much of today to add a new AOL account.

In the past, I could create an 'app password' within AOL (browser) and use that password in Thunderbird... but that is no longer working.

Any guidance/suggestions?

I am running the latest Thunderbird version 140.17.0esr (64-bit) available in my MX Linux.

How can I get rid of that horrible bug of Thunderbird prompting me for my login credentials. Already tried the following: re-adding my Email account, reinstalling Thunderbird from scratch. Nothing has worked.

I managed to add one email account, but now is impossible to connect any other, it doesn't matter if it's a gmail or a personalised email.

It says: Authentication error.

Unable to log in at server. Probably wrong configuration, username or password

both give me the same error.

Any advice?

Mozilla Account works normally directly inside Firefox, but logging into Mozilla Accounts through Thunderbird's Add-ons manager fails during the Firefox handoff.

Steps to reproduce: 1. In Thunderbird Add-ons, click Log in. 2. Thunderbird redirects to Firefox, showing "Continue with Mozilla account". 3. Click Continue -> Firefox displays "You could not be logged in. Please try again."

Troubleshooting already tried:

• Created a brand-new Thunderbird profile (thunderbird -P) — same failure occurs.
• Cleared cookies/site data in Thunderbird and cleared Firefox cache.
• Disconnected existing Thunderbird/Add-ons connections from Mozilla Account dashboard.
• Extensions and add-ons themselves install and download normally.

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 have installed Thunderbird on Linux on a chromebook. When I try to add my (gmail) email account in the Thunderbird account setup screen, it hangs up trying to authenticate the Google password for the gmail account. I have scrupulously checked and rechecked the password and the server details, and they are all correct. Why won't Thunderbird accept the password for my gmail account? Or is something else not right?

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 do not need to write much. My passwords in Google, Microsoft, etc are all in Ibo language (NIGERIA) and no one can decipher it. I have been using them for 15 years, now Mozilla wants me to change it. No, It will never happen. That language is another level of protection. Bye for now.