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I have been trying to move my emails from an old (win10) PC to a new Win11 PC for two days now and still having problems. Can you please help with any ideas to solve my difficulty?

I have used the instructions and video on this link to the letter. https://support.mozilla.org/en-US/kb/moving-thunderbird-data-to-a-new-computer

The old PC is running win 10 pro 64-bit - thunderbird is version 146.0.1 (64-bit) My current profile is 5.3GB

The new PC is running win 11 pro 64-bit - thunderbird is version 146.0.1 (64-bit)

I have used the exact method shown in the video to copy the thunderbird folder in the roaming folder on the new PC. (C:\Users\beeni\AppData\Roaming\Thunderbird)

and then copied the thunderbird folder in the local folder as the instructions below the video in the link as I am copying profiles from win 10 to win 11. (C:\Users\beeni\AppData\Local\Thunderbird)

My username is different on the two PC's - is this important?

I'm using IMAP for new emails so only concerned about copying the emails from the local folders on the new PC.

Is there something I'm missing, can check or a method to copy the emails from the local inbox folder sections at a time to keep a zip export below 2gb?

Thank you for reading and helping

Dave

As of today, I am unable to link to, or log onto, my email server - gmx.com..... Have never had a problem until today.

Today, when I opened up Thunderbird, ALL my email accounts came back with an error message stating that the login to the server failed (see attachment). I don't know what happened.

I checked all of my settings, and they are all correct (according to GMX), I tried to re-enter my passwords, and even re-booted my computer in the off chance that there may have been a booting issue. Nothing helped.

Can someone tell me what's going on? Why is Thunderbird all of a sudden not linking with the email servers? How do we fix this when all of the protocols are correct - and have been all along? Any thoughts, suggestions, or advice?

Thank you....

POP3 account. Trash contains folders that, mostly, I have no idea where they came from, and nothing I do will delete them. More than 30 folders at current count, all empty.

Anyone have any insight? Thanks. Brett

I've lost my password, but I believe I have retrieved it from the Profile. The entry reads: "encryptedPassword":"MEIEEPgAAAAAAAAAAAAAAAAAAAEwFAYIKoZIhvcNAwcECOabVSCGHBLGBBiqEqUXu8w7N4eAi09k0ZOIVAcs0chiziM=". Please would you indicate how to decrypt. Promptly upon resolution, I shall obviously change the password using the regular Thunderbird method.

For over a year now, I have had to resort to the Orange.fr e-mail client, which is much less satisfactory. I have used a Demo version of "Passware kit" to seek to retrieve the elusive password, and have received no satisfactory answer from it. I am not prepared to pour good money after bad.

A software solution is only as good as the support the publisher provides for it. Please answer soon.

I emphasise that, as a regular contributor of funds in the past, my continued funding of Mozilla Firefox and Thunderbird depends on your answering with a satisfactory, workable solution to my long-standing plight, contingent upon decryption of the password above.

Adam Warren FRSA [edited from public community support forum] @orange.fr

For the last two day when I start Thunderbird I get the message "The current operation on 'Inbox' did not succeed. The email server for account [edited]@herrinonline.net responded: expecting ")" instead of "(".

This is happening with all 4 email addresses I have. 3 on ionos and 1 on gmail.

I have checked all the settings for the Ionos webmail server and the Gmail server and they are correct. I have deleted of of the accounts and recreated it but still get the same message.

Attached is a capture of the actual error message. If I try to synch with any of the email addresses I get the same message for that email

Can you offer any help?

Thanks,

John

Thunderbird 140.7.0esr allows me to e-mail my OpenPGP public key to myself, but it doesn't seem to have any way for me to get access to my private key. I was wondering how to export keys? Thanks!

I am still using version 60.80, and want to back-up all my contacts. There is no export button in tools, so how do I back them up?

Any advice appreciated. (Not too technical as I am 79)

Thank You

In my current version of Thunderbird, new messages show a dark blue subject line only until I click on them. After I open the message once, the blue highlight disappears. Is this the normal behavior now?

Is there any way to extend that same dark‑blue highlight to other emails as its really helpful to provide good contrast between individual emails.

Thanks, Steve

Not sure how it happened but I've suddenly lost access to my Google calendar. On the bar on the left side of my calendar display screen there is a list of two calendars, Home and my email address, which I think is a Google calendar. Even though I check "Show all calendars" it does not show my email address calendar. And if I click on only to show my email address calendar it shows nothing at all. On my Pixel cell phone I can still see both the Home calendar and the Google calendar, so I guessing Thunderbird has just lost the link, although it shows a googleapi address when I click on properties. When I accept a Zoom calendar listing it has always and still shows up on the Home calendar. This seems most mysterious. Anyone have an idea of what I should do? Is there anyway I can rebuild the link to the Google calendar?

All of a sudden, i can not log on to my email accounts. I get a "failed" message for all 3 accounts. I get this message. Login to server mail.westpeake.com with username redacted@westpeake.com failed. Brian West www.westpeake.com

Hi. I have a problem since few months ago about the following fact: when i want to move emails from inbox to a specific folder, i am using "recent destination" option, but the folders doesn't appears anymore in alphabetic order. I have attached a screen shot with "recent destination" list of folders and currently they are not listed in alphabetic order anymore. Can you help me to fix this issue?

Thank you!

Sent mail has suddenly vanished, even though it is still on the originating file server. This happened very suddenly. I uninstalled and reinstalled Thunderbird, but no change. I am about to reboot PC to see if this will solve the problem. Very strange!

My PC Has Thunderbird 146.0 (64-bit) which has a Spam folder which my spam/Junk messages are set to go to automatically. My Lenovo Laptop has Thunderbird 140.6 (64-bit) which has a Junk folder and although the settings are the same on both machines the Spam/Junk doesn't go to the Junk folder automatically. According to my Laptop I am up to date with the program, but from the above it versions this doesn't seem to be the case. Can you please help sort this out.

I want Thunderbird to stop marking everything I delete as having been read. The way it works now, if I accidentally delete mail that I haven't read yet it's much more difficult to find it when everything is marked read even when it wasn't. I searched everywhere and haven't come up with a solution for this. It was reported as a bug years ago and was never fixed.

1. I've drafted an email, then hit save / closed the email and opted to "save changes". 2. I try to edit that email, but it is just "flashing" in the preview screen. I right click on it to "edit draft message", but that just brings up a blank email. 3. The status in the bottom left of the screen shows "loading message..." "downloading message", repeatedly. 4. It was working fine earlier in the week, but Thunderbird Desktop Version 140.7.0esr | Released January 13, 2026, seems to be when the problem started?

I cannot seem to sign in or submit my password. I usually get around 15 emails of a Sunday morning from my family in another state. I cannot seem to receive emails and thus not be able to reply. Please may I have some assistance. I am in my late seventies and very self taught. Of course as a result when anything goes wrong, I am not sure how to get through this.

Hello,

I have defined about 45 simple filters to get rid of spam. They are all based on keywords found in subject or sender.

All of them are enabled and set this way :

Apply filter when : _ Manually Run X Getting New Mail ( Filter before Junk Classification ) _ Archiving _ After sending _ Periodically, every 10 minutes.

Perform these actions : 1. Set Junk Status to : Junk 2. Move Message to : "super-junk" folder 3. Mark As Read

See example in attached image.

PROBLEM : They do not run automatically when new emails are received. But if I run each of them manually, they work.

QUESTION : What is wrong ?

Thanks !