Thunderbird Support Forum

Dear Sirs,

Please help why didn’t support China Office 365? We are using China exchange online, but it can’t use Thunderbird login our account. We have ask them, they need the software register to their system, could you register thunderbird to their system? Thanks!

Kin

When sending an email using Thunderbird application it does not send and always require to have a password. I am using verizon.net email and used an app password to send an email. The app password is somehow not save or stick on the Thunderbird server settings. Did multiple app password already before I was able to send it. Are you having an outage or an update with regards to the Thunderbird application?

How do I get Thunderbird working again? (Out since 30.05.24) I am a senior and need easy directions to follow as not tec. savvy. I was an iinet customer - now themessaging.co

I have been receiving emails and newsletters from a number of companies for many years. Suddenly last December many stopped coming. I have been in touch with one in particular and I am still on their mailing list. I am unable to find anywhere I can check. And before anyone says check your Junk folder. I do that every day. It has gotten to the point where I will have to stop using Thunderbird. Where can I look to find out what is wrong.

I have searched through forums and youtube. I can not locate an "options" or "security" tab anywhere in the menu structure. I want to change my email password to enable incoming and outgoing emails. My account is already established, I only want to change the password so Thunderbird can get and send from my email account.

Hi, just upgrade to Windows1 and did a new installation from Thunderbird. latest version 115.11.0 (32-bits) But the new messages are almost directly market as read even with setting mark messages automatic as read set to no? On a other pc with Windows11 I had the same problem with the 64bit version but going to the 32bit version solved the problem. Any Idea how to solved this problem? Regards Karina

I have used Thunderbird for some years with no problems, but today it has completely disappeared. The icons have gone, it is no longer listed under programs/applications, everything has just vanished. I have tried to locate Thunderbird profile folder but can't find that either. I use Windows 10 and have not had an update in the past few days. I also use Firefox and that is still fine.

I'm not a techie so don't know what else to try. I'm reluctant to install Thunderbird again because if possible I would like to recover my emails. Also, much as I like using it, there's no point if it's not reliable. I would be very grateful for your help and advice.

I recently setup a new Windows 11 computer and installed the latest version of Thunderbird. I have two email accounts. The gmail account presented no problems. When I tried to setup the AT&T account I first obtained an authentication password and setup the account. While I can send email just fine, the account will not download any email. When I go on the AT&T server directly, there are new, sent and deleted email there. The server settings are set to SSL/TLS and OAuth2. What else do I need to setup before I can mail from the AT&T server?

I have 2 different yahoo email accounts that I access through Thunderbird. When I added the 2nd account, it changed the SMTP Server Settings "user name" of the 1st one to the same as the new one. I received an error when I tried to send an email from the 1st account, after looking at the settings, i noticed the SMTP user name was wrong. When I changed it on the 1st account, it automatically changed it on the 2nd account as well.

A while ago my long-time hotmail account stopped working on two computer with windows 10 and one with windows 11. Last night, I looked up an article that said I have to use Oauth2 instead of normal pw. I made that change on the windows 11 machine and a popup occurred that wanted the number from the google authenticator on my phone. I gave it that and it checks mail now just fine.

This morning I went to one of the Windows 10 machines and did exactly the same. I tried some different server names online and tried some, but after a while I started getting a little window that asked my email address and pw. I put my hotmail address in and got this message:

Microsoft Accounts or personal email addresses don’t work here. Make sure you enter your work or school account (e.g. user@contoso.com). If you want to reset a Microsoft Account password, click here.

Now this is the very same hotmail email that worked on windows 11 with the same server settings last night. It still works.

Now, on the windows 10 machine with those same settings, I get the blank extra window. The extra window appears, does not populate, and disappeared.

It is: https://login.microsoftonline.com/common/oauth2/v2.0/authorize?response_type=code&client_id=9e5f94bc-e8a4-4e73-b8be-63364c29d753&redirect_uri=https%3A%2F%2Flocalhost&scope=https%3A%2F%2Foutlook.office365.com%2FIMAP.AccessAsUser.All+https%3A%2F%2Foutlook.office365.com%2FPOP.AccessAsUser.All+https%3A%2F%2Foutlook.office365.com%2FSMTP.Send+offline_access&login_hint=redacted@hotmail.com

I had no opportunity to do what worked on the windows 11 machine just last night. I cannot check mail on hotmail on this windows 10 pc. I took all the updates available to Thunderbird and firefox. TB is 115.11.1

I'm stopped. Why would it work on one pc and not another? Oauth2 on the windows 11 asked for authenticator. On the windows 10 it never asks.

The last version of Thunderbird that I downloaded and installed was V91.0.2 in 2021. When I installed this latest upgrade my email was totally screwed up. I lost my address book and everything else. Support finally gave up I guess because they quit replying to my posts. I have been just using GMail as my email host. I think I would like to try to be able to use Thunderbird again but, I assume it would require a totally new install and I have no idea where to start. I am not a computer guru so would need my hand held to do this. Thank you

My email from cox.net was just moved to yahoo mail. I still have my @cox.net email. I change the server name to imap.mail.yahoo.com, port 993, SSL/TLS, normal password, and the SMTP server to smtp.mail.yahoo.com, Port 465.

I cannot download any new emails. Help!

On Sunday 2nd June I removed and then reloaded Thunderbird, which ceased to function the previous day.. Now I can't send but can receive e mails, and it has lost my entire e mail address list. I need this list to be restored asap, please, so I need advice.

After last update of Thunderbird on my laptop I can no longer change start upp URL:, or uncheck "show startpage" That means evry time I star Thunderbird, I get the ask for more mony ! But on my PC it runs normal as it alwas have done.

The information on how to solve this dose not work ! It is like the inifile is locked. Mats

When I open a message in my TB 115 Inbox, and wish to zoom in or out on the message using the keyboard commands for Zoom (Command+Plus, Command-Minus, Command-0), nothing happens.

I am running TB 115.3.1. My OS is Mac OS Monterey, 12.7.3

I have restarted TB 115 in Troubleshoot Mode, and the shortcuts still do not work. I have manually disabled all add-ons, and this has made no difference, either.

The only thing that works for zooming in or out on an email is to first use the drop-down menu for View -> Zoom. Then the Zoom keyboard shortcuts do work for that specific email. With each different email, the keyboard shortcuts for Zoom do not work, unless I first use the drop-down menu commands.

How do I get the keyboard shortcuts for Zoom to work without having to first use the drop-down menu?

Thanks,

- Alan

I believe that TBird in the past would show the count of the selected messages in the bar at the bottom. For example if I selected 10 messages in a folder for deletion it would show at the bottom how many were selected. If I selected a thousand it would show that number, and then when I hit delete it would show a progress of x number deleted of so many selected.

Now it no longer shows the number selected and during the delete process only occasionally flashes the x number deleted of the number selected.

I believe this is a bug in 115.11.1 It is occurring on two different PCs both running Win 10 Pro.

I'm on Thunderbird 115.11.1 on Windows 11. I got an error that there wasn't space to download emails today. My Thunderbird profile shows this:

            121 File(s)    100,867,461 bytes
             24 Dir(s)  455,503,380,480 bytes free

In the startupCache folder File Explorer says that there are 2500 directories, 660 files, and 4.94 TB of content. The last few lines of a dir command show this. Note the weird dates on the directories and garbage names.

06/02/2024 12:15 AM 164,221 startupCache.8.little 08/16/2057 01:32 AM <DIR> }+ 3an^.1q 08/08/1997 03:53 AM <DIR> √µÇ┌╪,Pù. 05/04/1990 02:21 PM 467,310,242 4φ)τ~o╗D.cÖê 04/24/2063 05:53 AM <DIR> ╤fεª╫s₧&.╘rα 02/08/2083 12:31 AM 2,596,407,552 «-╞┐I┤U.`xs 10/22/2020 06:59 PM <DIR> *¼²Ñ▐'╣.░╦ 03/06/2078 11:59 AM 3,915,121,951 n│ê/ë∞3Γ.f└ï The parameter is incorrect.

     <DIR>          πºaîí├

▌.»δ The parameter is incorrect.

        333,948,754 Åô␦╖w6ùƒ.x▐

The parameter is incorrect. j]j.╥QwDIR> Φπ═ The parameter is incorrect.

     <DIR>          ╒0q≡ó,.@{¥
            660 File(s) 2,708,943,115,907 bytes
            664 Dir(s)  455,496,040,448 bytes free

What is the best way to clean this up?