Unable to transfer Thunderbird profile to new computer

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 docume… (læs mere)

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.

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sudo apt purge thunderbird Reading package lists... Done Building dependency tree... Done Reading state information... Done Package 'thunderbird' is not installed, so not removed 0 to upgrade, 0 to newly install, 0 to remove and 3 not to upgrade.

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I have attached a screenshot of the update window.

Thanks.

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At /home/eric/.var/app/org.mozilla.Thunderbird/.thunderbird,my profiles.ini file looks like this:

[General] StartWithLastProfile=1 Version=2

[Profile1] Name=default IsRelative=1 Path=z663dkmf.default-release Default=1

[Profile0] Name=default-release IsRelative=1 Path=grykcnt2.default-release

[InstallFA9DEAB4CC8E0E14] Default=/home/eric/.var/app/org.mozilla.Thunderbird/.thunderbird/z663dkmf.default-release Locked=1

[Profile2] Name=Default User IsRelative=0 Path=/home/eric/.var/app/org.mozilla.Thunderbird/.thunderbird/z663dkmf.default-release == There's also an installs.ini file:

[FA9DEAB4CC8E0E14] Default=/home/eric/.var/app/org.mozilla.Thunderbird/.thunderbird/z663dkmf.default-release Locked=1

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