copied profile to new directory got message "you have opened an old version of thunderbird"
My Thunderbird profile in Linux Ubuntu 24.04 is in /home/dick/Thunderbird_mail/me. I want to copy it to a new directory. I copied it using the following commands: dick@dick1:~$ mkdir t2 dick@dick1:~$ cp -rf Thunderbird_mail t2
I then ran "thunderbird -P" and created a new profile pointing to /home/dick/t2/me When I opened this profile I got the message "You have launched an a\older version of Thunderbird.", even though I was running the same version of Thunderbird. If I open the profile in Thunderbird_mail/me, it works correctly. If I open the profile in t2/me with the same executable of Thunderbird, I get this message.
How can I copy my profile to a new directory?
dick@dick1:~$ thunderbird --version Thunderbird 115.11.1
Alle antwurden (3)
I am a Linux novice, but this approach usually works' - exit thunderbird if running - very important - copy profile to desired location - start thunderbird, click help>troubleshootinginformation, scroll down to 'profiles', click 'about:profiles', click 'create profile' button, click next, enter short name for profile, then click the choose button to locate and select the profile in new location.
That's what I did, which caused the problem.
the newest version of Ubuntu comes with a new feature that places all programs like Thunderbird installed from the repository in a sandbox. So Thunderbird can only reach out to the locations the sandbox allows.
See https://ubuntu.com/core/docs/security-and-sandboxing Fundamentally you need to change your sandbox settings, but as I don't use Ubuntu or any of it's derivatives I have no experience with this bright new idea. Although it is very much the same as is applied to Thunderbird downloaded from the Windows store. The difference is Thunderbird can not even tell you where it's profile is located in the windows store version.