Windows 10 bereikte EO (einde ondersteuning) op 14 oktober 2025. Als je Windows 10 gebruikt, lees dan dit artikel.

Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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Importing mobx files to Thunderbird email

ken43

I have Thunderbird installed on windows 11 and have the import export NG tools add-on. I have an mobx file locally that I am trying to import to thunderbird. I created a local folder and started the import but almost immediately I get this error: "TypeError: window.ietngAddon.mboxCopyImport is not a function", and the only thing that gets imported is the name of the mbox file, as a subfolder

I have Thunderbird installed on windows 11 and have the import export NG tools add-on. I have an mobx file locally that I am trying to import to thunderbird. I created a local folder and started the import but almost immediately I get this error: "TypeError: window.ietngAddon.mboxCopyImport is not a function", and the only thing that gets imported is the name of the mbox file, as a subfolder

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Gekozen oplossing

Copy the mbox into Mail/Local Folders in the profile, with TB closed, then restart TB. Does the folder now appear under Local Folders in the Folder Pane?

Moving the mbox file into my local folders profile location worked perfectly. Thanks for your help!