thunderbird import wizard

4.8 Based on 151 Reviews

Thunderbird Import Tool to Move Multiple MBOX Files in Mozilla Thunderbird

  • Import MBOX, EML, EMLX, Maildir files in Thunderbird profiles
  • Support all size of MBOX file as there is no file size limitation
  • Uphold folder hierarchy & meta properties during migration
  • Import bulk number of emails along with attachments
  • Date Filter option to import emails of certain time period
  • Compatible with all versions of Windows includes Win 10, 8.1, 7

Unique Features of Thunderbird Import Tool

import multiple mbox files

Import MBOX Files in Bulk

The tool allows users to import several MBOX files into Thunderbird. The tool provides two options to open a file i.e. File Mode and Folder Mode. Add File option will enables users to select MBOX files individually whereas Add Folder option will enables users to select a folder containing one or more MBOX files.

date filter icon

Date Filter Option

Thunderbird Import Wizard has an advanced date filter option which allows users to filter emails date wise. Instead of migrating entire MBOX file, users can apply filter using 'From Date' to 'To Date'. This feature is helpful when users want to import emails of a specific time period.

import EML EMLX files

Bulk EML / EMLX to Thunderbird

Various email clients generate EML / EMLX files for email file storage. These files can be imported in Thunderbird in bulk with attachments using Thunderbird Import Wizard software. The application supports EML / EMLX files created in both Windows and Mac OS email clients for smooth importation.

import maildir files

Maildir to Thunderbird

Thunderbird Import Wizard also allows Maildir files to be imported in Thunderbird profile without any data loss. So, in case you have some Maildir files created in Thunderbird email application, use this software to import and open them in Mozilla Thunderbird 68 / 60 version.

keep folder structure intact icon

Keep Folder Structure Intact

While importing MBOX emails into Thunderbird, there is an option available named Maintain Folder Hierarchy which sustain folder structure by keeping emails inside their original folder. The tool also preserves data integrity by keeping meta properties such as Subject, Date, etc. intact.

no size limitation

Load & Import Any Size of File

Mozilla Thunderbird Import Tool doesn't have any restriction in the size of MBOX files. It can add all sizes of MBOX, EML, EMLX, Maildir files and import unlimited emails from MBOX to Mozilla Thunderbird.

user friendly interface icon

Intuitive Graphical Interface

The application is best known for its intuitive interface. It makes the task so much easier that even non technical perform can easily import various MBOX files. Each and every step is described in a simpler manner.

import emails into thunderbird profile

Import Emails into Desired Profile

This feature is best suited when Thunderbird is configured with multiple accounts. In such case, the tool provides an option to select desirable profile in which they want to import their emails.

status report

Generate Import Status Report

After completion of the process, the tool generates export report containing name of the MBOX file, size, number of emails, time taken in import process of each MBOX file. The file can be saved in CSV format on the local drive.

support all windows versions

Compatible with All Windows Versions

The tool can be run on any version of Windows operating system includes Windows 10, 8.1, 8, 7 and all below versions.

When to Use Thunderbird Import Tool?

Overview on Mozilla Thunderbird & MBOX File

Mozilla Thunderbird is being widely used as free & open source email client throughout the world. Thunderbird saves messages inside the Profile Folder in the Mail and Imap Mail folders. Further, it stores mail folder (Inbox, Draft, Sent, Trash) in two files. One file is saved without any extension (i.e. INBOX), which is a MBOX format and other is saved with MSF (Mail Summary File) extension.

Need of Thunderbird Import Tool

  • Sometimes users have MBOX files residing in their system and have to access them. As there is no inbuilt feature in Thunderbird to import MBOX file so users are unable to view emails. This is when Thunderbird Import Tool comes into the picture. It helps users to open MBOX files and import them in Thunderbird application.
  • This application is mainly designed to provide ease of use whilst importing unlimited MBOX files to Thunderbird profile.

Download Trial

Limitations –

Demo version of Mozilla Thunderbird Import Tool import 25 items per folder to Mozilla Thunderbird.

System Specifications–

  • Windows : Windows 10, 8.1, 8, 7
  • Processor : 2.4 GHz Processor
  • RAM : 4 GB is recommended
  • Disk Space : 100 MB hard disk space


Screenshots of Mozilla Thunderbird Import Tool

Launch RecoveryTools Thunderbird Import Tool. The tool will provide two options: Add File and Add Folder. Add File option will add multiple files whereas Add Folder option will add folder having MBOX, EML, EMLX, Maildir files.

download setup

Click on Add File to open single file or multiple files.

add file

Select single or more MBOX files that are need to be imported into Thunderbird. Now click on Open button.

Open MBOX Files

Click on Apply Filter button to import selective emails. Now click on Set button.

Apply Filter

A new window will appear named Mail Date Filters. Select Include Date and From to To Date.

Set Date

All the email ids that are configured with Thunderbird will be shown in this option. Select desired id in which you want to import emails.

Select Identities

This option keeps internal structure of folders intact after importing MBOX files.

Maintain Folder Hierarchy

Once the import process completed, a message will pop up Import process completed successfully.

Import Process Completed

A status report is generated with the tabs: Names, Number of Mails, Size, Duration and Status. Click on Save Report to save the report in local machine with CSV format.

Export Report

You can open and view report as shown.

View Report

A Live Video Showcase of Thunderbird Import Tool

online video

Frequently Asked Question

Yes, Thunderbird Import Tool provides an option to add multiple files and import all files at once.

Yes, this standalone application is compatible with all versions of Windows OS.

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