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FixVare Thunderbird to Office 365 Migrator

Total Ratings: 336 - Average Rating: 4.8 out of 5

A seamless and quick way to migrate your Thunderbird emails to an Office 365 account while ensuring data integrity and precise output.

  • Directly transfers Thunderbird emails to Office 365 with the attachments.
  • Allows migration of S/MIME and PGP-protected emails without data loss.
  • Original folder structure and data integrity are maintained throughout the process.
  • Supports batch and bulk migration of Thunderbird emails all in one go.
  • Automatically scans and shows a preview of the uploaded files before migration.
  • Fully standalone utility with auto-detection of files from the storage location.
  • Runs well on both the latest and older editions of Windows without any issues.
    Windows 10 Supported

Free Demo: Import first 25 emails from each folder of Thunderbird file.

We handle complete Thunderbird mailbox to Office 365 migration, conversion and backup solutions, ensuring precise migration of emails and attachments while preserving the folder hierarchy during the process.

Why go for Thunderbird to Office 365 Migrator?

Seamless Migration of Thunderbird Mailbox to Office 365

FixVare is a Thunderbird to Office 365 migrator that allows you to migrate your Thunderbird mailbox directly to Office 365 using your Office 365 login credentials. With this tool, you will not have to manually export your Thunderbird email data or rely on IMAP for the transfer like if you are transferring your office emails from Thunderbird to Office 365 you can log in by adding your username and password of your Office 365 profile and selecting your folders to upload into Exchange Online. This process saves you time, reduces errors and eliminates the need for technical support.

Intelligent Thunderbird Profile Detection

This advanced app will automatically detect all Thunderbird mailboxes stored in your default location and you do not need to search through your folders to locate Thunderbird files. Even if you are a non-technical person who wants to move to Office 365 just need to open the tool, and it will automatically find the Thunderbird folder which minimizes human errors during the transfer and speeds up the process while still providing an easy-to-use interface for you.

Hassle-Free and Safe Cloud Migration

When using this tool to migrate from Thunderbird to Office 365, it will create a secure connection to Office 365 accounts with secure authentication and an encrypted connection. There is no storing of login credentials by the app, which gives you complete data protection during a migration like an organization concerned about securing its data while migrating to Office 365 can migrate with confidence that its accounts will remain private and secure, as we promise to help prevent unauthorized access to ensure a secure migration environment.

Generate Detailed Migration Reports

The software smartly creates a detailed log report after the completion of the migration process. This report contains detailed information about the folders that were migrated, the number of migrated items, and their status, which can be used by the IT team to verify reports that files were uploaded successfully and to keep records of successful audits on the company’s email migration processes. For this reason, using this feature is especially important in corporate settings because it allows documentation of mail migrations.

Features and Benefits of Thunderbird to Office 365 Migrator

Take a look at the core features to get to know the tool better.

Email Conversion

Thunderbird Mailbox Batch Transfer

If you have hundreds of Thunderbird mailboxes that you want to move to Office 365 account with the help of this tool you can do it in few minutes all in one go as it supports batch and bulk migration of multiple files without any manual processing or file size barriers that gives the freedom to you to move your emails flawlessly without any trouble.

Email Conversion

Maintain Email Attachments and Metadata during Migration

All email attachments and the metadata of emails in Thunderbird files remain unchanged when they are added to Office 365. This means that any attached documents such as resumes, invoices and email metadata like To, CC and BCC will remain unchanged in Office 365 keeping business operations continuous while eliminating any risk of data loss or confusion.

Email Conversion

Advance Pre-Migration Mailbox Item Analysis

Pre-migration scanning of Thunderbird mailboxes provides you with an item count before performing the migration process. You can review the number of items to be uploaded before completing the migration process and avoid surprises if they have a large number of items to migrate or unnecessary files.

Email Conversion

Independent Tool, No Additional Software Needed

Using this app does not require Thunderbird, Outlook or any other third-party programs installation at all as it reduces compatibility issues and makes it easy for you to load files, automatically detects and loads the Thunderbird mailboxes without any manual search.

Email Conversion

Optimized for Windows Environment

It works with most widely used versions of Windows, like Windows 11, Windows 10, Windows 8.1, Windows 8 and Windows 7 both 32-bit and 64-bit and you do not have to upgrade your operating system to take advantage of this tool.

Email Conversion

Evaluate the Tool with Free Demo

This professional tool allows you to migrate the first 25 items in each folder through which you can determine how well it performs and how accurate it is before purchasing a full license. The best part about it is both beginner and professional-friendly friendly with 24/7 customer support.

Software Specifications

System Requirements

Processor Any Pentium Class
Operating System Windows 11, 10, 8.1, 8, 7 & Other
Memory 512 MB Minimum
Hard Disk 100 MB of free space for software installation

Software Delivery

Electronic Via Email
Minutes 15

Interface Available

Language Supported English
Support Option Emails, Chat & Skype

Download Guides

Installation Guide
User Manual
Purchase Related FAQs

FAQs of Thunderbird to Office 365 Migrator

Can I move Thunderbird emails directly into Office 365 with any extra software?

Yes with the help of this, you can directly move your Thunderbird mailboxes to an Office 365 account just but authenticate yourself by adding your Office 365 profile username and password and you're good to go.


Does this app move attachments with the emails?

Yes you don’t have to worry about your attachments being misplaced or lost as this tool migrates the exports all the attachments with the mailboxes to the Office 365 account hassle-free.


Are there any file size limitations to process the files?

There is no file size limitation you can migrate all your multiple bulky files of Thunderbird mailboxes to Office 365 without file corruption or data loss.


Won’t this tool make any modifications in the structure and hierarchy of the emails?

No it won’t make any changes in the format, hierarchy and metadata of the original files throughout the process and you will find them the same in the resultant file as they were in the original one.


Can I use this software without any technical knowledge?

Yes absolutely as running this tool doesn’t require any technical expertise or guidance as it comes with a modern and self-explanatory GUI which makes it beginner or novice-friendly.


Is there any trial available that I can try before purchasing the full version?

Yes this tool does offer a trial version without any cost and is packed with all the advanced features that are present in the full version.