Thunderbird Community Forum

Hi,

I remember from the past, the existence of a file (with a strange name) which contained additional information (tags, forwarded etc) for every (IMAP-) email-message.

Problem is, I can't find it any more, and (stupid me) I forgot it's name and where it's located.

Could someone please

• help my memory with the name and where it's (or was) located
• AND when it has been replaced in TB128 by something else, what that something is and where it's located

Thank you

I have installed the latest version of Thunderbird. I have adjusted the settings . Everything looks fine, but how do I save those settings so they are applied next time I open Thunderbird?

I am using Windows 10. I want to save Table View and Descending Sort Order.

Mozilla previously released Thunderbird on Flathub. However, the version of Thunderbird available on Flathub does not support Arm64. As a result, many users rely on the built-in repositories of their Linux distributions to install Thunderbird. Unfortunately, the Thunderbird versions provided by many of these repositories are outdated. Using outdated versions poses security risks and does not meet modern security standards. I believe Thunderbird should provide an Arm64 build on Flathub so that users can more easily access the latest version of Thunderbird.

macOS allows applications to register their entries to the "Services" menu, that appears with right-click on items in the Finder but also in applications where you can write text. I need that menu in the text field where you compose a new email. Is that possible to activate?

My workaround is now to write the text somewhere else where the menu is available, apply it and then copy-paste the result.

Hi, thanks in advance! I have several email addresses set up in Thunderbird. The incoming emails for all come into the global inbox with each having its own folder within that inbox. Today, I added a new email account and the folders for this account, including the inbox, are all in a separate folder. I cannot move the inbox up so it's in that global inbox with all of the others. I've searched for answers, but can't find one that works.

I have 6 email accounts in Thunderbird (TB). 4 recently created IMAP accounts and two POP accounts.

I recently added an IMAP email client for my domain name. There already exists a POP account for this domain name and I’ve had it since TB came out (I used Pegasus Mail before).

The account names are displayed the same in TB except the IMAP account. "___@___.com" The above is the POP account and it only displays the email name: "___@___com"

"___@___.com IMAP" The above IMAP account also displays the word “IMAP” in the title.

I have over 46000 messages in 58 sub folders on this POP account and I want to keep all of them for now.

My biggest question is - when I Delete the POP account, "will TB also delete all the sub folders at the same time ?"

Right now, the Inbox on the IMAP account does not retain any messages. When I start TB, we know it auto checks all email accounts and downloads new mail to each account. Emails to my domain name go to the IMAP account first. When I open the Inbox in the IMAP account, I can see all the downloaded messages but only for a second. They disappear from IMAP and transfer to the POP account.

Every 10 minutes after that, TB downloads messages from all accounts again. This time any messages to the IMAP account can be opened & viewed. They can also be deleted or moved to another folder. 3 to 5 minutes later, they ALL appear in the POP account. Any messages not deleted remain in the POP account Inbox. No messages remain in the Inbox for the IMAP account.

I know I need to move all the folders and sub folders from the POP account display to the IMAP account display. This is going to take a while. Like I said, the Inbox will not retain any mail, it automatically moves to the POP account after 3 to 5 minutes.

I have moved the ‘Sent’ mail folder to the IMAP account and started on some of my Archives files. The first one I moved from POP to IMAP was a ‘Sent 2008-2015' folder. This folder has 5363 messages. I just did a ‘drag and drop’ with my left mouse button from the POP Archive folder to the IMAP Archive folder. It worked like a charm. Took a couple of minutes and you could see TB counting off the messages being moved at the bottom of the screen.

Seem like TB was teasing me, it will no longer copy large count sub folders with ‘drag and drop’. I think that first folder is the largest. TB will sometimes create the proper folder name but not move any messages. I have to go in and select 100 or so messages at a time and 'drag and drop' them into the newly created folder in the IMAP account. Sometime I ‘drag and drop’ and TB doesn’t do anything. It going to be tedious to get all my email moved from POP to IMAP. Of course, I will do it if necessary but is there some other method of moving the sub folders from the POP to the IMAP account that is faster ?

I created IMAP accounts for my two other POP accounts and I only had to move the Inbox mail from POP to IMAP. One of the POP accounts only had the Inbox and Trash folders and the other one had those 2 plus five sub folders. One of these folders have 3381 messages. Had to move them 100 or so at a time. The other 4 folders had a small number of messages and transferred easily. Deleting the POP accounts at that point was no problem.

So, again, my biggest concern is deleting the main POP account and TB deleting the sub folders. If I have to get them moved before deleting, so be it.

Thanks for any help.

How can I change the Thunderbird Profile filename (instead of the random number)? I don't see this in the existing help files, and searching didn't find any similar questions I want something recognizable, like "thunderbird profile as of July 2025"

I see several folders within Library / Thunderbird. Some say "profiles COPY mm/dd/year" but the one titled simply "profiles" seems to be the active one. All these folders contain the same three random numbered files, and the one named xxx.default seems to be the one in use. I see two more users on startup, their files named xxx.TEMP and xxx.OCT2015 which I never use. Might be leftovers from when I had to change the SETTINGS around.

Hello: I send out newsletters to about 100 senior men golfers. I've been struggling with my messages going to spam or junk folders. My messages don't contain spam, but some mail servers are rejecting them. I've been working the problem (proper server authentication, DMARC, SPF, DKIM, etc.) but one of the suggestions I've read is to make sure there's an "list-unsubscribe" link in the email header. I've placed one in the body of the email at the bottom of the page (still fails), but how do I make a header in Thunderbird in which to place a link? Thanks for any help.

Windows 10 on PC with Thunderbird 140.1.0esr (64-bit) Since the last update, the background on my Tbird messages list, email panel and in my compose email panel have turned from my eye-friendly light grey to glaring white and this is literally causing me a headache and a "flimmer" in my eyes (common in people with blue eyes). All other programs in Windows show me the light grey background as they should, it's Thunderbird itself which isn't picking up the light grey. The only place in all the tools and settings menus that I was able to find ANYTHING about background colour was (three bars) -> tools -> Settings -> HTML Style [ ] Use reader's default colours <- makes no difference whether this box is marked or not Beneath that: Text Colour is set to black. Background colour is set to light grey. There is no way to Save the settings page, so one presumes they are automatically saved. Restart (done several times) Thunderbird - still this blasted white background. I do not use HTML for emails, I use plain text. Could someone please tell me how I can get my light grey background back ?

on July 12th made A Donation to thunderbird and after that was unable to receive or send emails it has been frozen since then I can't figure out how to get it working again?

allthough I deactivated automatic forwarding, all emails are still forwarded to my daughters. I erased the email-adress and I closed the filter. Need your support, want to fix it.

I want to export all public pgp keys from Thunderbird to a file via the command line. I am on Ubuntu 22.04, but would imagine that does not play a big role.

Does somebody have an idea how to do that?

A few days ago Thunderbird stopped downloading messages from my Sky email , just now keeps saying server timed out, nothing has been changed in the settings. the settings all look OK?

Just noticed there was a Thunderbird update installed 29th July, this is the date my emails stopped!

I have 2 email accounts using Thunderbird and comcast. One works perfect! this one I can not send. I have been fighting this problem for over a year. I have tried to match all information with the working account, NO GOOD. Went to Xfinity store for help, they said everything was fixed. NOT SO.

I recently installed Linux mint 22.1 and the first package I installed was Thunderbird. I proceeded with account creation and Thunderbird picked up on the configuration required. IMAP/SMTP Microsoft MS challenged for authentication password which I provided and my mails downloaded to Thunderbird.

When trying to send email - Authentication fails so I cannot send emails. Is it me, Microsoft or Thunderbird? The message: Login to server smtp.office365.com with username ******* failed.

I can receive mails no problem.

Hi, Just got computer back from shop where - rather than upgrade - they did a clean install of Win11. I was under the impression from them they'd backup everything on a new "backup" drive they installed to double my capacity as part of the upgrade process.

They're version of backing up Thunderbird left me with a folder "Thunderbird_profile_backup.zip" that is 9,698,657kb in size.

I am attempting to install Thunderbird on the essentially new computer and restore all data from the previous installation.

Is this even possible anymore at this point?

I have data in that file that is important not only financially but archived family info from now deceased members... I'd really like to recover it.

In short help! lol.

Mark