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This article describes the issue but there is no resolution that works in all cases https://support.mozilla.org/en-US/questions/1323864

In my situation I have a work account that uses gmail as the mail server. every time I open TB I get this message popping up.

I have disabled all fetching of email and notifications of incoming mail and deleted related passwords.

Is there any way to fully disable an account without deleting it?

Contacts syncing Tbird and iCloud appears to be unidirectional: Tbird > iCloud. When I make a change in Tbird contacts (via CardDAV), it appears in iCloud, but changes in iCloud do not effect Tbird contacts. Is this by design? Calendar sync is bidirectional.

I recently moved to another email provider. Since the move I use a new email address (account). The mail in the previous used imap account must be saved. Since the old server at the provider has been blocked. A lot of emails have to saved for some years. Do you have a suggestion how to save the mail? Thanks, Paul

Thunderbird v115.7.0 (32 bit) Win7 (32 bit) SP1.

I am trying to add another account, but when I fill in the account info (name, email address, and password,) it pops up an oauth2 verification window but the window "Fails to connect"

The title of the window is "Enter Credentials for (email address) on imap.comcast.net.

After some time, I get a "unable to connect" message.

I managed to copy some of the url, here is the beginning part https://oauth.xfinity.com/oauth/authorize?response_type=code&client_id=thunderbird-oauth&redirect_uri=http%3A%2F%2Flocalhost&scope=https%3A%2F%2Femail.comcast.net%2F+profile+openid&code_challenge_method=S256&code_challenge=xhwuKlnA_c...

This has happened before for Google accounts too.

Is there a fix?

Thanks, Mark.

Hello! I am developing an application for an organization that uses Thunderbird in a Windows environment. Among other features, it is necessary to implement the transfer of mail client settings from one workstation to another. Built-in Mozilla Thunderbird tools are not suitable. I am still considering implementation options (autoconfig or direct work with files), and I have several questions. I will be very grateful for any help. 1. What is the minimum required files in the appdata folder that I need to create (transfer) so that the profile works without errors on the new workstation? No need to transfer messages, they are all on the server, and offline work is not used 2. How does the installs.ini file work? I need to avoid creating a new profile when starting Thunderbird for the first time, do I need to create an entry in installs.ini, and if so, where can I get the correct installation code? 3. Is it possible to transfer saved passwords to a new workstation? What are the requirements for this? I am very grateful for any answers

TB 128.8.0esr (64-bit)

In one account the Trash folder is a subfolder of Inbox. I do not know how that happened. It is the "official" Trash folder; the icon is unique and I cannot delete it.

There is a regular folder named "Trash" that appears to be linked (shadowed?) to the real Trash folder.

How do I move that subfolder ("Trash") to the top level, equal with the Inbox?

If you change your Thunderbird setting on your PC from POP to Imap, how do you change setting on phone if you are not allowed to change them? Do you have to delete existing POP account and setup/add the new Imap version. ? Can you also force stop the POP account and try to change settings that way?

PC = HP PHONE = Samsung Galaxy S23

Using Thunderbird 128.7.1esr under Windows 11. I've got a batch of ancient mail that I would like to search. The archive is sitting on an external drive with folders named *. sbd, files named *.msf, and files with no extension. A quick peek at some of those with no extension reveals e-mail messages of the kind I'd like to be able to search.

I seem to recall being able to open such archives from within Thunderbird, but it was decades ago and I'm a little lost. EDIT: I just reinstalled ImportExportTools NG, but I don't see how to proceed.

How can I open or import these? Again, I just want to be able to browse and search.

Many thanks, Jeanne

Hello, I never added my gmail account in Thunderbird Nevertheless a full screen pop up window shows up constantly and asks me for my gmail password  !!!! What is this? !What a a nightmare! I 've spent a lot of time searching solutions with chatatgpt, didn t find out I'M NOW THINKING ABOUT STOPPIing USING FIREFOX ! GRRRRR ! does someone has a solution please ? I'm really fed up with this.

我把一个账户从thunderbird中删除了，并且在发信服务器中删除了对应的发件服务器，但每次打开thunderbird时，软件依然要我输入该账户的密码以连接该账户，怎么办？ I removed an account from thunderbird and deleted the corresponding outgoing server from the outgoing servers, but every time I open thunderbird, the software still asks me to enter the account's password in order to connect to the account, what can I do?

I was browsing this page: https://support.mozilla.org/en-US/kb/adding-a-holiday-calendar

Which says:

• Select "On the Network", and click "Next".
• From the Format list, select iCalendar (ICS).

But when I select "On the Network" I see no options for file format (TB 138).

Is subscribing to remote ics files still supported, or must we download the files locally and subscribe to them there?

Using Tbird 115 (or later) can gmail contacts be the listing used in Tbird and be in synch when changes are made in the gmail contacts list. There appear to be various methods and I seek the best and simplest. Thanks

I submitted this as a bug report but I will also submit this here to see if anyone has any information or a solution.

After resetting my password, none of my sync data from before the install is there. Only the sync data from my laptop, but even on my laptop it no longer lists my old computer, it is as if my PC from before the new OS has simply been deleted from the sync logs. In fact, my sync logs only go back to the moment I changed my password. I am not sure how to proceed as it appears that there aren't even any traces of my sync from before this point.

It would be nice if I could get the old tabs I had open on my desktop before I changed my OS, but it's not exactly a "world ending" situation.

I have Thunderbird installed [via Flatpak](https://flathub.org/apps/org.mozilla.Thunderbird) and suddenly it's not recognizing the profile that contains the email accounts. When launching it is showing the welcome wizard instead.

The file system contains quite a few profiles though:

``` $ cd ~/.var/app/org.mozilla.Thunderbird/cache/thunderbird $ du -h --max-depth=1 6.8M ./i58nuv2e.default-release-1 813M ./r77u2ylw.default 6.7M ./w92uxxz8.default-release 0 ./jncleef4.default 6.5M ./fbs6wcvl.default-release 0 ./lz1kt9ot.default 6.9M ./tv1kaebo.default-release 0 ./7f6s4la8.default 839M . ```

but `about:profiles` shows only `tv1kaebo.default-release` and `7f6s4la8.default`.

I'm pretty sure that I didn't do anything but updating the Flatpak and I definitely didn't change any Thunderbird settings or anything in its data directories.

The correct profile is `r77u2ylw.default` (its directory size is 813M while the others are less than 7M).

Hence I'd like to know how can I make Thunderbird use that profile and avoid that issue happening again?

• • PS:** And what's the best way of cleaning up profiles, since I only need one profile anyway? The Thunderbird UI doesn't even recognise all of them, so would be deleting them sufficient?

I currently have 3 Comcast mail accounts I access from my home PC using Outlook 2016 configured for POP3. For each of the 3 Outlook accounts I designate a common PST file on my home PC. Thus when launching Outlook messages from all 3 accounts are downloaded from Comcast and stored in this one PST file. Can I configure Thunderbird to do the same?

Thunderbird updated today to 128.2.3esr and suddenly I have to log in to my Google account, which doesn't work: I get an 404 error when I try to set up my account (which has been working flawlessly for months). I'm on Windows 11.

Hello,

I am in the process of linking my mail account via Thunderbird on my computer. However, I can no longer see my normal folder structure. However, if I link my account via my Android phone using the Thunderbird app, I have the option of selecting so-called special folders (see attachment screenshot 1). If I then select INBOX, my usual folder structure can be accessed again in the linked mail account on my phone (screenshot 2). Why don't I have this option in Thunderbird on my computer? Perhaps I thought I was using an outdated version of Thunderbird on my computer, but I cannot see the version number and cannot check whether I can update Thunderbird or not.

Best regards, Dr. Jan-Christian Raabe

I am having a problem syncing my Thunderbird folders with iCloud. Every time I have to explicitly check that I want to subscribe to all IMAP folders in my iCloud account. Then after a short while a lot of folders get unsubscribed and I have to subscribe them again. I have experienced this instability with both Thunderbird and Betterbird as well as on Windows 10 and Pop_OS! 22.04. More people have reported the same issue, but no solutions have been shared:

• https://support.mozilla.org/en-US/questions/1441368
• https://support.mozilla.org/en-US/questions/1444029

Does anyone know how can I fix this?

I've easily added new e-mail accounts in the past. I know the procedure, but I recently needed to reinstall Thunderbird. After the new install, I had no problem added one Comcast e-mail address. But when I try to add other Comcast e-mail accounts (enter name, e-mail address and password), it initially looks good ("Configuration found in Mozilla ISP Database"). But when I click "Done", the next window says "Unable to Connect". I've tried this several times with the same result.

I've read about this online, and it looks like Microsoft prevents Thunderbird from using "their" e-mail addresses for security reasons. I'm not sure how Microsoft consider Comcast e-mal accounts to be theirs.

How can I get around this?

I'm down to the last few days before Outlook will not be usable on Thunderbird unless I jump through some hoops.

I've seen posts about deleting the Outlook account, then reinstalling it in Thunderbird and Thunderbird will create the necessary security steps to make it usable again. This seems to be the method that works rather than just going into the settings and changing the necessary security settings.

MY QUESTION IS: I have lots of emails (sent and received from past months and years) that I keep in folders within Thunderbird.

How can I keep those folders/emails in the format I have if it's necessary to delete the account on Thunderbird then reestablish it? My understanding is that deleting it in Thunderbird will also delete all local folders and email saved within that account.

Thanks B