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Migrating a Thunderbord Profile from Windows 7 (32-bit) to Windows 10 (64-bit)

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  • 1 has this problem
  • Last reply by bsfinkel

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I have installed Windows 10 in a new partition,and one of the last things I have to do is to get Thunderbird profiles set. I have not yet set up Thunderbird, so I have in Appdata\Roaming\Thunderbird\Profiles:


My profile in Windows 7 is qf00ka5x.default . In the Profiles directory I renamed the default profile by appending "-old". Ten I copied (via xcopy) the qf00ka5x.default directory from Windows 7 to Windows 10. Now I have in the Profiles directory:

    06/30/2020  03:49 PM    <DIR>          .
    06/30/2020  03:49 PM    <DIR>          ..
    04/06/2020  09:21 PM    <DIR>          qaqkee8x.default-old
    06/30/2020  01:11 PM    <DIR>          qf00ka5x.default
    06/29/2020  08:54 PM    <DIR>          v73kxnlg.default-release

When I start Thunderbird with -P, I see two profiles in the "Choose User Profile" pop-up window:


If I click on "default-release", Thunderbird opens and asks me to set up the account. If I click "default", then I get a pop-up window with the error message, "Your Thunderbird Profile cannot be loaded. It may be missing or inaccessible."

Four related questions: 1) Why are there only two profiles listed in the "Choose" window, when I have three profiles there? Is it because I have appended "-old" to one profile name?

2) When I click on "default", which profile is being loaded and failing? Is it my qf profile or the "-old" profile? If it is my qf profile, how can I determine what is wrong with that profile?

3) I also have profiles in Appdata\Local\Thunderbird\Profiles. I did copy my Local qf files from Windows 7 to Windows 10, but I am not sure what is the purpose of this Local Profiles directory.

4) Until I get this problem resolved, can I go back to Windows 7, run Thunderbird, and auto-synch my qf profile between Windows 7 and Windows 10?

This is Thunderbird 68.9.0 .


All Replies (1)

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I solved my problem. I had not updated the Profiles.ini file to add the copied profile name. Once I did that, I saw my copied profile as the default profile. I still do not understand why, when I have three profiles now, I see only two when I start Thunderbird with "-P".


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