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Thunderbird to Office 365 Migration Tool

An ease to use program to directly Import Thunderbird Mail folders to Office/Outlook 365 Account with accuracy and fast speed.

  • Export Unlimited Mail Folders from Thunderbird to Office 365 Account.
  • Auto-load all mail Thunderbird Mail folder in single click.
  • Migrate all Thunderbird MBOX/MSF and SBD folders to Office 365.
  • Get Live Preview of Thunderbird emails before migration
  • Export Emails of Selective dates with Mail Filter by date option
Thunderbird to Office365 Migration

Key Features of Thunderbird to Office365 Migration Tool

thunderbird to Office365 Migration tool




  • Migrate emails from Thunderbird profiles to Office 365 account with no limitations.
  • Auto-load Thunderbird profiles/Mail folders in single click for quick migration.
  • Manually select Thunderbird files/folders for migration (MSF/MBOX).
  • Get preview of Thunderbird emails with attachments and other information.
  • Also, offers to export mail folders from Thunderbird to Outlook PST file.
  • Selectively export mail folders from Thunderbird profile to Office 365 account.
  • Filter Mail by Date to export emails of required dates from Thunderbird profile.
  • Perform Thuderbird migration without facing any file restrictions problem.
  • Migrate Thunderbird data to Office 365 with preserving complete folder-hierarchy.
  • Comes with clean and easily understandable GUI to perform migration with ease.
  • Completes the migration without any additional software requirement.
  • Compatible with all Windows O/S editions including- 10, 8.1, 7, Vista, XP, etc.

Demo version: Export upto 25 emails from each thunderbird mail folder to Office 365 account.

Advanced Features of Thunderbird to Office 365 Migration Tool

Import Thunderbird Mails to Office 365

An intelligent option for importing Thunderbird email to Office 365 profile. Users can quickly move their email folders such as Inbox, Draft, Sent, and others folders items from thunderbird profiles to Office365 account. While migration, the software ensures that its users will never face any kind problem.
Migrate MBOX to Gmail/GSuite
import mails in bulk to imap

Bulk Export Thunderbird Mail folders

Thunderbird to Office 365 tool comes with batch migration functionality. With this option users can effortlessly transfer multiple mailboxes at once. This function saves consumers valuable time and provides speedy results without losing a single bit of data.

thunderbird email preview

Preview Thunderbird Emails

Thunderbird migrator, generates an original preview of all loaded mailbox folders and items. Before performing Thunderbird to Office 365 migration, users gets this functionality. Users can click on a specific email to see the contents and attachments in preview panel.

auto-load thunderbird profile

Auto-Detect Thunderbird Profile

With Thunderbird to Office 365 migration tool, users will get an auto-load thunerbird profile option. Using this option users can add all thunderbird mail folders and profile in single click. Software searches all folders and add them in the software with original folder structure in the left pane.

add thunderbird profile folders manually

Add Thunderbird File/Folder Manually

Using Thunderbird to Office 365 migrator, users also get the option to manually select and add Thunerbird MBOX/MSF Files or Folders. Users may choose one or more Thunderbird file/folders and transfer them directly into MS Office 365 with easy steps.

export selective thunderbird folders to office365

Export Selective Mail Folders

Users can effortlessly export chosen Thunderbird mail folders to Office365. Software will allow users to select the needed mail folders from the list of all added thunderbird mail folders and move them directly into Office365 profile.

filter thunderbird emails

Mail Filtering by Date

Users can also remove unnecessary emails during transfer process for accelerating Thunderbird email migration with its 'Mail Filter by date' option. Use this option and simply enter a start and end date as an input and the software will allow you to export Thunderbird emails of only selected dates to Office365.

securely perform migratiomn

Securely Perform Migration

Software has advanced features to perform Thunderbird email to Office 365 migration with complete safety. The software allows users to export Thunderbird mails to Outlook 365 with no risk of data loss. Both individual and corporates can utilize this migrate from Thunderbird to Office 365 without facing any problem.

simple and easy GUI

Easily Understandable Interface

Beginner to highly technical users can access this software with ease, because of is smart and clean graphical interface. Users may transfer Thunderbird files to Office 365 account in a few clicks without any professional support. Furthermore, our technical staff is available to assist users at any time.

software support or compatibility

Compatibility & Support

The application is compatible with all Windows editions, including Windows 11, 10, 8.1, 8, 7, Vista, XP, and other (both 64-bit and 32-bit editions). On any Windows version, users can install and use this Thunderbird to Office 365 converter. Without facing any problem the software will export all Thunderbird mail folders in an easy manner..

free thunderbird to office365 migration

Free Demo Availability

Before purchasing the application, all users can download and try its demo version and test the program's functions. The trial edition has the same features as the licenced version, but it can only upload the first 25 items from each folder to the Office 365 cloud for free.

Migrate Thunerbird Mails to Other Cloud Mail Applications

In addition to Office 365, users can also get the option to migrate Thunderbird mails to various more cloud mail applications.

Thunderbird to Gmail migration

Thunderbird to Gmail

Software offers to directly export unlimited mail folders from Thunderbird profile to Gmail & G-suite/Google workspace bussiness mail account.

Import MBOX to YahooMail

Thunderbird to YahooMail

This thunderbird migration tool also offers users to migrate Thunderbird emails to YahooMail (for migration, software only needs yahoo email address and third-party app password)

import MBOX to IMAP Server

Thunderbird to IMAP

With this thunderbird Converter, users will get Thunderbird to IMAP migration option to migrate from Thunderbird to Cloud mail application like- AOL, ZohoMail, Godaddy Mail, etc.

Note:- Unlimited migration from Thunderbird to Office365, Outlook.com, Gmail, Yahoo, or IMAP server is only possible with "Corporate" & "Technician" license.

Software Comparison - Demo vs Full Version

Software Features Trial Version Full Version
Export Thunderbird Mails to Office365
Bulk Export Thunderbird Mail folders
Move Thunderbird folders Selectively
Mail Filtering By Date
Auto-Load Thunderbird Profile data
Export Unlimited Thunderbird E-mails Supports to Export 25 items from Thunderbird mail folders
Download Now BuyNow ($39)

Software Specification

Trial Limitations

Demo edition will allow users to Export 25 items from each Thunderbird mail folder with no charges.

Software Info


Version Support
All edition of Mozilla Thunderbird.

Single User, Corporate, Technician, & Enterprise

Language Supported
English, German, Italian, French, Spanish

System Requirements

Intel® Pentium Class

Operating System

Hard Disk Space
50 MB of free hard disk space

Minimum 512 MB is required

Software Delivery


Delivery by E-mail

Supported Editions

Works with all windows O/S editions 11, 10, 8.1, 8, 7, below editions

How to Import Thunderbird Mailboxes to Office365 Account?

Check out te complete process of Import Thunderbird mail folders to Office 365 account using Thunderbird to Office 365 migration tool.

Frequently Asked Questions (FAQ)

  • Download and launch eSoftTools Thunderbird to Office365 Migration tool
  • Press the Add File/Folder button, then choose a file selection option.
    • Select MBOX File– To manually add single Thunderbird MBOX/MSF files.
    • Select MBOX Folder – Select and Add Thunderbird mail folders Manually.
    • Auto-Load Thunderbird Profile – In a single click import all thunderbird mail folders in the software.
  • After adding Thunderbird Mail folders and press the Next button.
  • Get a preview of all emails and other item from thunderbird profile.
  • Select needed folders, then hit the Import to Cloud >> Import Thunderbird to MBOX button.
  • Add your Office 365 account email ID/password (additionally use Mail filter option).
  • In the final step, click the Convert button and begin the Thunderbird to Office365 migration.

Thunderbird to Office365 Migration tool

Yes, Thunderbird converter has the auto-detect/auto-load Thunderbird profile option. With this option users can automatically load all thunderbird mail folders in the software with a single mouse click.
Yes, the software offers a preview panel in which users can see all their email with attachments. From preview panel users can view emails to make selection of required mail folders to perform migration.
Before migration, with mail filter option users can choose required dates to export emails of some specific dates from Thunderbird mail folders for free.

Yes, while migration the software holds the original folders and sub-folder hierarchy and preserves thunderbird email with complete information.

Yes, users can easily import Thunderbird MBOX/MSF files and other mail folder/files directly Office 365 account using this tool with ease.

No, there is no requirement of any additional software installation and opening. For migration this tool, only needs Thunderbird files/profiles and Office 365 account login details.

Yes, this Thunderbird to Office 365 migration tool is workable in all newest to older versions of Windows O/S including- win 10, 8.1, 8, 7, Vista, XP, and others.

Using free demo edition of Thunderbird migration tool, users can view Thunderbird emails as well export upto 25 emails from each thunderbird mail folder to office 365 for free.

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