Thunderbird Support Forum

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!

Hello! Since I couldn't find help in the forums, I will create a new question. For about a year now the PC at my work will not open mailto-links correctly. There is no account to select from, the subject has a lock-symbol. The receiver's address is correct though (I replaced it with "address" for the screenshot). This PC is the only one I know with that problem and only with external mailto-links. If I click on an email address inside a mail, it opens it correctly. Thunderbird version 115.11.1 (32-Bit), Win 10

It's pretty impractical, so I am hoping for help. Thank you!

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?

When I try to switch profiles, I get the following error: An unexpected error has prevented your changes from being saved. I have been messing around with this on and off for a couple of months. I uninstalled Thunderbird and re-installed with no luck. This error is not allowing me to switch to a profile that I have had for over 20 years and I have lost all my Local Folders, quite disturbing. I found a similar thread here, but no solution. Thanks, Paul

The new inbox format is similar to Apple inbox. I used Thunderbird because, in my opinion, the inbox layout was much better than Apple mail inbox which is one of the primary reason I use Thunder bird. Is there a way to go back to the previous inbox version?