Backup all aspects of Thunderbird under Ubuntu 24.04 x64

I want to replace the Thunderbird snap with the deb. I have emails, calendar, and address book. How do I back up all of these so that I can restore them after removing the snap version and installing the deb version?

Everything you need is in the folder /home/username/snap/thunderbird/common/.thunderbird/xxxxxx.default - where xxxxxx is a string of numbers and letters. This is default folder where all the information re your emails is contained. Save this folder and keep it in a ‘Safe’! Now you can remove snap thunderbird and install the deb version. When you launch deb thunderbird a new profile will be created and you can copy the files/folders from your old (snap) profile to your new (deb) profile. Done this many times.

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~/snap/thunderbird/common/.thunderbird/
To back up your profile, you can copy this directory to a safe location. If you are using IMAP accounts, you may only need to back up the settings, as the messages are stored on the remote server. However, if you are using local folders, you will need to back up the entire profile directory.
Hope that helps.

I have two directories that end in .default. If I check the properties on each, they have the same date. I have two .ini files labled profiles.ini and profiles.ini.new. profiles.ini has four profiles while profiles.ini.new has one. If I go into Thunderbird , choose Help, Troubleshooting Information, About Profiles, I see two Profiles with default. One is named default-release and the other is named default. The one named default-release has the comment "this is the profile in use and it cannot be deleted. I would assume this is the correct profile to back up. I suppose I just need some comfirmation on my logic (or lack there of’

BTW, thanks for the responses to you both.

Yes - the key folder is the .default-release one. Don’t worry about what is inside - just concentrate on this folder. Save a copy of it, double check, and then copy the contents into your new setup. (Off-topic: when you ‘backup your system’ this is the folder you want to backup re backing up Thunderbird. Your can only backup specific files in .default-release and it still works but for simplicity just ‘backup’ the complete folder).

Got it. That’s exactly what I needed to know. Thanks again. I’ll go ahaead and close this thread.

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