Installing and configuring Thunderbird to import Mbox files into Google

Owned by Kevin Ledbetter
May 11, 2022
1 min read

Email accounts can be exported on many platforms in MBOX format.  The free software product Thunderbird can be used to import MBOX files in a Gmail account .

Step-by-step guide

    • Download Thunderbird from Mozilla’ website https://www.thunderbird.net/
    • Run the executable file 
    • Standard radio button > Next
    • Uncheck Use Thunderbird as my default mail application > Install > Finish
    • Enter Full Name - New Email address  > Password
    • IMAP radio button > Done
    • With Thunderbird open - click the Hamburger button > Addons and Themes
    • In the search field type: ImportExportToolsNG
    • Click + Add to Thunderbird > Add > OK
    • In the left pane right-click Local Folders >ImportExportTools NG > Import mbox file
    • Select Import directly one or more mbox files > OK
    • Navigate to the location where Google export was saved. 
    • Select mbox files > Open
    • Files will be dropped into Local folders - drag and drop to [Gmail] folder.
    • It will take a while to move from Local folders into the GMail account.



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