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I am attempting to transfer my Thunderbird Profile from and old computer (call it "SOURCE") to a new computer ("TARGET"). I have tried everything prescribed in the documentation. It fails every time.

[1] I tried importing the ".Thunderbird\Profiles\xyz.default: folder from SOURCE to TARGET (Tools -> Import). It starts the import, but soon aborts with the incomprehensible message:

1747152229330 addons.xpi WARN Checking C:\Program Files\Mozilla Thunderbird\distribution\extensions for addons Found 0 public keys and 0 secret keys (0 protected, 0 unprotected) RNPLib.jsm:559:15 1747152229736 addons.xpi WARN Addon with ID thunderbird-compact-light@mozilla.org already installed, older version will be disabled 1747152229736 addons.xpi WARN Addon with ID thunderbird-compact-dark@mozilla.org already installed, older version will be disabled Uncaught NS_ERROR_ILLEGAL_VALUE: Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIWebProgress.addProgressListener] <anonymous> chrome://messenger/content/aboutMessage.js:119 aboutMessage.js:119 1747152289419 Toolkit.Telemetry WARN TelemetryStorage::_scanArchive - have seen this id before: e4a0732e-f511-4cb6-ba38-be42dbd2b48f, overwrite: false Uncaught (in promise) NS_ERROR_FILE_NOT_FOUND: Component returned failure code: 0x80520012 (NS_ERROR_FILE_NOT_FOUND) [nsIFile.copyTo] _recursivelyCopyMsgFolder resource:///modules/ThunderbirdProfileImporter.jsm:659 _importMailMessages resource:///modules/ThunderbirdProfileImporter.jsm:588 _importServersAndAccounts resource:///modules/ThunderbirdProfileImporter.jsm:248 2 ThunderbirdProfileImporter.jsm:659

I have tried importing over a network, and also after copying the whole Profile from SOURCE to TARGET first, in an intermediate work area.

[2] I can't Zip my Profile, it's 16GB.

[3] I tried manually copying the profile directly from SOURCE to TARGET's "C:\Users\myLoginID\AppData\Roaming\Thunderbird\Profiles\". When I start Thunderbird, it only shows the first few email folders, the rest are missing.

I have used this procedure successfully many years ago between two other computers.

I am desperate, I put my trust in Thunderbird, and now I cannot move forward, my business is in jeopardy. My old computer has started failing, it's on its last legs, and could soon become unusable.

I contribute to Thunderbird every year, and am a strong supporter.

I have a downloaded application of Thunderbird 78.6.1 on my computer from 2021. With my new Windows 11 Pro I had to download and install 138.0 (64 bit) and I'd like to go back to 78.6.1. Can I install it by running the application from the old download? If so, do I need to uninstall 138.0 first?. Will my address book and emails be safe? Is there any profile mix up I should be concerned about?

Hi, I've successfully downloaded and installed Firefox on my HP laptop with Windows 10 and now attempting to download and install the Thunderbird email client. On Thunderbird.net when I click the Download button, the Donation Page pops up (and I made a donation) then closed that window. I'm then on the Thank You page but there is no prompt to install, so just stuck on the Thank You page. Thunderbird is not appearing in my downloads file. Can you please help?

I recently changed onto the new release channel by installing version 136. I now find that this new release channel appears to have installed version 138, but it is reported as a beta version. I do not want to use beta versions, as I am having a lot of problems with it, so how can I return to a stable release?

Greetings to all, I'm trying to install the Thunderbird email client on a Mac that is running High Sierra. I have downloaded the installation package 3 times from the Thunderbird.net website but each time I try to open one of the .dmg packages I get an error that states the image is corrupt and cannot be opened. Is there something I'm doing wrong?

Thunderbird came back looking totally different after a power outage. More like 5 of them in a 30 seconds. No matter what settings I use, it doesn't look like it used to and I do not like what I have now. It is still what I like on my laptop. When I try the export function the file is much larger than the 2 gigs. I do not understand what to do when it says to back it up yourself. I have included a screen shot on how it should look.

I upgraded to update 138. Thunderbird now requires me to enter a Primary Password. I never set a primary password. I cannot send, receive, or make any changes to Thunderbird.

How do I get out of this situation?

I just did a Windows 10 clean install and re-installed Thunderbird (ver 138.0). Because of a foul-up with File History, my most recent backups did not include the Appdata directory. I found a very old backup (2018) and copied the TB profile from that, overwriting the new TB profile folder. That did recover messages, local folders, etc. prior to 2018, but the Address Book still has no entries. There appears to be some data in the old history.mab and abook.mab files that came over, but no contacts appear in any of the address books in the new installation.

Despite the age, it would be of some use to recover the ca. 2018 address book. Suggestions?

I started getting error messages to say that my account was rejected at the server, This happened on all my email accounts. I obviously checked that the configuration of the accounts was correct although they had been working previously. I removed my VPN and Firewall, removed the app and deleted residual data and then re-installed. I still have the same/similar problem, when i try to add an account i get a message saying "Unable to login to Server, probably the wrong configuration, username or password" All of which have been checked multiple times.

I updated to Thunderbird 115.18.0 which is apparently the latest that will run on my Mid 2011 iMac with MacOS 10.13.6 (High Sierra). I updated following the link(s) in the About Thunderbird drop down

However, the Menu Bar is in a foreign language (see image) and I can't find where to fix it. It looks like the wrong update file was grabbed so I need to find a download for Thunderbird 115.18.0 in English for an Intel iMac and High Sierra.

I am troubleshooting a problem that arose after I migrated a Thunderbird mail account from an old Win10 64-bit PC to a new Win11 64-bit PC.

I installed TB on the new machine and opened the program without doing anything else, then closed the program. TB created installs.ini and profiles.ini files, both with the following as the last line:

Locked=1

This line had not been in either .ini file on the old installation.

I edited these files to point to the backed-up TB profile from the old machine, but I decided to leave the Locked=1 line in the .ini files.

Was this a mistake? I have a strange problem with the new installation, which I won't report until I understand what the "Locked=1" means, and whether I was ill-advised to leave it/them in. Fortunately there has been no evident loss of mail data.

Thanks in advance, Phil

I had an TB account with Spectrum but lost it when I didn't have Spectrum anymore. I got Sprectrum as my internet provider and am trying to create a new TB email account but have not been successful. Can you help me

Postbox having been sold to eM Client, I need to migrate to Thunderbird. Import worked pretty well using the protocol "migrating from a previous Thunderbird installation" however the filters did not import at all. It happens that I have 320 of them, so it would be a great help if some automatic procedure could be implemented. Is this possible? Thanks in advance. Regards, Gérald

I created a new installation, Win11 64-bit, and edited installs.ini and profiles.ini to use the profile left from a previous Win10 64-bit installation.

I get messages to the Inbox correctly, and the structure of what would be Local Folders seems intact. However, I have two problems: (1) when I try to save a message in another folder, I get a dialog saying my disk is full (there are more than 200GB available) (see image); and (2) the "Local Folders" folder looks to be in the Trash. There is also some "weirdness" in the menu when I try to move a message from Inbox (see image).

I have never tried to export from TB but if I can export the Inbox and the other folders with saved messages, I might be able to do a fresh install and then import those.

Any other ideas?

Thx -Phil

I tried installing TB on two machines with the same profile, but this did not work because I was unable to keep the versions in sync on the two machines.

Now I am back to one machine, but because of the above I was left with quite a few "zombie" Inbox and Trash folders. These are empty but they cannot be removed.

Is there a "trick" or mechanism within TB for doing so?

This is a Deb12 Linux installation btw.

Thx, Phil

how to convert from v128.6.2 esr(32bit) to v137.0.1 (64bit)

In the past, to update the mail on another computer I simply copied the profile folder. But the new installation is now version 137.0.1 and the profile structure is very different. How do I bring the accounts and all existing mail to my new computer?

thanks for your help.

hi i`m in a complete mess.

i donated as requested then i have lost everything no d/load links , no redirects , ZIP. why is it so difficult to navigate to a d/load ?

i`m trying to restore my TB after my current version failed to d/load e-mails from server this all seemed to happen after latest up-dates its been faultless before this please someone restore my sanity some one on one help would be appreciated

thanks

Greetings! I downloaded Thunderbird for my new Win11 desktop, but it gave me an ESR version 128.9.1. It's working fine, but can i just move to the current 137.0.1 version? If so, how do I do that - just grab the current version and install on top of the ESR or should I remove the ESR first? Thanks in advance!

My TBird of many years has gone haywire. Nothing I do or suggestions from the forum folks solves my issues. I'd like to download a replacement for my Mac High Sierra Version 10.13.6. IS there one available?