Import MBOX Files to Mozilla Thunderbird- Full Solution

Hi, I'm Anjali Aggarwal. I am here to provide a single solution for opening Google Takeout MBOX data in Thunderbird. This method is best if you have a small number of MBOX files.

 

Step 1: Install Thunderbird

• Install Mozilla Thunderbird after downloading it.

Step 2: Install ImportExportTools NG Add-on

• The ImportExportTools NG extension is required since Thunderbird does not support .mbox imports by default.
• Launch Thunderbird.
• In the upper-right corner, click the menu icon (☰).
• Choose themes and add-ons.
• Search for ImportExportTools NG in the bar.
• After selecting Add to Thunderbird, select Install.
• Restart Thunderbird.

Step 3: Create Local Folder

• In Thunderbird, go to the left sidebar.
• Right-click on Local Folders > Select New Folder.
• Name the folder or click Create Folder.

Step 4: Import the .mbox File

• Right-click on the new folder (or any existing folder under "Local Folders").
• Select ImportExportTools NG > Import mbox file.
• Choose "Import directly one or more mbox files" and click OK.
• Browse to your .mbox file from Google Takeout and select it.
• Click Open to start the import.

Step 5: View Imported Emails

Once imported, all your emails will appear in the selected folder inside Thunderbird.

This method can be lengthy and time-consuming. If you want to import 60 GB of Google Takeout data into Thunderbird, then try the software solution. Many software companies provide multiple solutions. I suggest you use the BLR MBOX Converter, SysTools, Softaken, CubexSoft, or Recovery Fix Software solution to import any size MBOX files to Thunderbird. I hope this solved your problem.