Thunderbird Conversion Instruction

Mozilla Thunderbird

Thunderbird emails can be converted to Outlook using an IMAP connection, which involves setting up an IMAP account in both Thunderbird and Outlook to synchronize your emails seamlessly. Alternatively, specialized conversion tools such as Thunderbird to Outlook Converter can streamline the process by exporting Thunderbird’s data into a format Outlook supports, such as PST, ensuring a smooth transition between platforms.

Thunderbird to Outlook Converter is a specialized, narrowly-focused tool intended solely for helping users import and convert messages from Thunderbird mail to Outlook PST data file. Created for users of all skill levels, not just professionals, it features a very intuitive and self-explanatory interface that turns the conversion process into a matter of just a few mouse clicks.

One of the key characteristics of this software is that it requires absolutely no auxiliary tools and intermediate steps for manual operations – everything is fully automated to allow users to migrate Thunderbird mailbox items to Outlook data file on their own, without spending time and money on third-party data conversion services or experts.

How to find where Thunderbird stores emails?One of the problems that users inevitably face when trying to export Thunderbird mail to Outlook is the initial location of Thunderbird mbox files containing the messages to be transferred. Unlike MS Outlook, which stores all its messages, folders, and other objects in a single PST file, Thunderbird stores them in several mailbox files with no extension, located in different subfolders of the program root folder. Therefore, it is not easy to find them all. Thunderbird Converter solves this problem by automatically detecting the path to Thunderbird and finding all its mailbox files.

Another challenge that confuses many inexperienced users in the case of alternative solutions is an intermediate step that may involve manipulating a large number of files in different Thunderbird folders that need to be converted and imported into Outlook. This tool allows users to import emails from Thunderbird to Outlook with just one click. No additional tools or actions are required, which eliminates the possibility of human error and ensures a smooth and hassle-free migration from Mozilla Thunderbird.

We recommend compacting your Thunderbird mailboxes before starting the conversion process. This compaction step optimizes each mailbox file, reducing unnecessary data and making the conversion faster and more efficient.

Thunderbird Mailboxes Compaction

To ensure a smoother and faster conversion process, it’s a good idea to optimize your Thunderbird folders by using the built-in Compaction feature. This helps clean up hidden deleted messages and reduces mailbox file size.

How to Compact Thunderbird Mailboxes:

  1. Open Mozilla Thunderbird.
  2. Right-click on any folder (e.g., Inbox) and select “Compact”.
  3. To compact all folders at once, go to File > Compact Folders from the top menu.

Thunderbird will silently remove unnecessary data, making your mailbox files leaner and more efficient for conversion.

Regular compaction not only speeds up email migration but also improves Thunderbird’s overall performance. It’s a quick step that makes a big difference.

Locating Thunderbird mailbox source folder

To successfully convert your Thunderbird emails, you may need to locate the mailbox source folder where Thunderbird stores its data. This folder contains your MBOX files and other profile-related information.

How to Find Thunderbird Mailbox Folder:

  1. Open Thunderbird.
  2. Click the menu icon (☰) in the top-right corner and go to Settings (or Options).
  3. Navigate to Account Settings.
  4. Select your email account from the left panel, then click Server Settings.
  5. At the bottom of the page, look for the Local Directory field.
  6. Click Browse or copy the path shown, this is the folder where Thunderbird stores your mailbox files.

Alternatively, you can manually locate the profile folder:

On Windows:

C:\Users\<YourUsername>\AppData\Roaming\Thunderbird\Profiles\

On macOS:

~/Library/Thunderbird/Profiles/

On Linux:

~/.thunderbird/

Inside the profile folder, look for subfolders ending in .default or .default-release. These contain your MBOX files, typically stored in the Mail or ImapMail subdirectories. Once you’ve located the folder, you’re ready to begin the conversion process. Let me know if you’d like help identifying specific MBOX files or preparing them for export.

Locate Thunderbird emails storage manually:

1. Select your account and use menu Tools | Account Settings

Thunderbird menu Tools | Account Settings

2. Go to Server Settings and copy the text value from the field called “Local Directory

Thunderbird menu Tools | Account Settings | Server Settings

3. Use the Local Directory value to specify the Source Folder for a program

How to Import Thunderbird to Outlook Using Our Converter

Switching from Thunderbird mail to Outlook can be a daunting task, especially if you have a large amount of important data to transfer. However, with our converter, this process becomes easy and hassle-free. This guide will walk you through the steps to import Thunderbird mbox files to Outlook PST using our converter. Whether you’re a tech-savvy individual or a beginner, this guide will make the import thunderbird mail smooth and easy. We will cover everything from downloading and installing the Thunderbird to Outlook Converter to the actual process of transferring your data. So let’s get started and make your transition to Outlook as seamless as possible.

Brief step-by-step guide:

  1. Download, install and run Thunderbird to Outlook Converter.
  2. Click the “Browse” button (“…”) and select the source folder containing MSF files and Thunderbird mailboxes to be converted.
  3. Click “Scan Folders” button to list all mailboxes within the selected source folder and subfolders.
  4. Click “Save PST” button and specify the location to save PST file and its name.
  5. Select Outlook folder to import Thunderbird emails.
  6. Wait for the conversion to finish.
  7. Open the resulting PST file in Outlook and check the result.

Converting Thunderbird messages to Outlook PST File

Step OneDownload setup package and install the converter, then run it. If you have purchased a license, unlock the full functionality of the product by entering the registration key using a corresponding command from the “Help” menu.

1. Launch the Thunderbird Converter— it automatically locates your Thunderbird MBOX files for processing.

Step TwoCheck the “Source Folder” field. If the program managed to automatically detect the path to Thunderbird’s main folder, you will find it there. If it didn’t happen for any reason, you can manually specify the folder with Thunderbird files using the standard folder selection dialog that is opened by clicking the button with three dots or via File menu, then Open… option.

Default patch to Thunderbird mailbox folder:

  • C:\Documents and Settings\{USER NAME}\Application Data\Thunderbird\Profiles\_
    or
  • C:\Users\{USER NAME}\AppData\Roaming\Thunderbird\Profiles\{SYMBOLS}.default\Mail\_

Step TreeOnce done, click the “Find storages” button to have the program recursively search for mailbox files (*.msf) in the specified directory. The names and paths to the found mailboxes will be added to the Mailbox File column of the main program table.

2. Initiate the folder scan to automatically locate all Thunderbird folders and subfolders for conversion.

Step FourOnce the files have been found, you can click the “Import” button to start importing messages from Thunderbird to Outlook. If you want to export Thunderbird emails to new .PST file instead of Outlook itself, you may change the MODE using the appropriate menu at the top. In that case the button caption will be changed to “Save“. You may click it and program will prompt you to select the target folder and file name for .PST file. Third mode allows to export Thunderbird emails to eml format.

Change Thunderbird Converter mode to Save messages to PST file

Step FiveThe program will prompt you for the name of the destination Outlook profile and folder the messages will be saved to. Apparently, you can choose the root directory, but if any two or more folder names match, their contents will be mixed, which is something you may not want to do. The progress of Thunderbird export to Outlook can be tracked with the help of two progress bars at the bottom representing preprocessing and import.

Outlook prompts to select the folder to import Thunderbird emails

Step SixOnce the program has completed exporting thunderbird emails to Outlook, you can close it and inspect the result of importing.

Benefits Of Using Our Tool

Using Thunderbird to Outlook Converter has many advantages. First, it simplifies the complex process of data migration, making it accessible even to those with limited technical knowledge. Second, it ensures the security of your data by preserving the integrity of your emails, contacts and other important information during the transfer. Third, it saves you time by automating the conversion process so you can focus on other tasks. Finally, it supports all versions of Thunderbird and Outlook, providing a versatile solution for all your data migration needs.

How to export Thunderbird mbox file

In addition to migrating Thunderbird emails, the Outlook converter software is capable to export emails from mbox file format to multiple EML files. If you need to convert thunderbird messages to EML format, follow the instruction below.

  1. Ensure that Thunderbird application is not launched and run Thunderbird to Outlook converter tool.
  2. Click menu File > Open… and select the source folder containing Thunderbird data files.
    if you don’t know where the Thunderbird profile data is located, launch Thunderbird and copy the path from the settings panel.
  3. Click “Scan Folder” button to find all mailboxes.
    Each Thunderbird folder is represented as a separate mailbox file containing email messages. All mailbox files will be listed in the program window. Here you may deselect some of them. For example, if you don’t want to export mbox files called “Junk”, “Deleted”, you may uncheck them which will exclude them from the processing.
  4. Click menu “Mode” and activate the “Export to EML files” mode.
  5. Now click “Save EML” button.
  6. Specify the empty folder to save exported email files or create new folder and choose it.

The software will transfer all the emails from the chosen mailboxes into folders that have the same name as the mailbox files. This will result in a file system directory structure that mirrors your Thunderbird folders, each containing multiple EML files. This method can be used to migrate thunderbird messages to another compatible email clients such as IncrediMail, Live Mail, eM Client etc. To convert the mbox files to pst format process the thunderbird migration as described in the beginning.

Manual Methods and Their Disadvantages

Manual methods of Thunderbird to Outlook conversion, such as using IMAP, EML export or drag-and-drop method, often have several disadvantages. Firstly, these methods can be complex and time-consuming, requiring a certain level of technical expertise to execute them correctly. Second, they often pose a risk to data integrity, with the potential for data loss or corruption during the conversion process. Third, these methods may not support conversion of all data types, leaving out critical information such as contacts or calendar entries. Finally, they may not be compatible with all versions of Thunderbird and Outlook, limiting their applicability.

So while manual methods may seem cost-effective, they often come with hidden costs in terms of time, effort, and potential data loss.

Reasons Behind Thunderbird to Outlook Migration

  • Compatibility: Microsoft Outlook is compatible with multiple devices and operating systems, making it more accessible than Thunderbird email client.
  • Advanced features: Outlook offers more advanced features such as scheduling, task management, and calendar options that are not available in Thunderbird.
  • Better integration: Outlook offers better integration with other Microsoft Office applications such as Word, Excel, PowerPoint, etc.
  • Improved security: Outlook offers more robust security features, including encryption and spam filtering, that are superior to those in Thunderbird email client.
  • Easy-to-use interface: Many users find the Outlook interface easier to use and navigate than Thunderbird.
  • Better support: Microsoft provides better customer support and regular updates for Outlook than for Thunderbird.
  • Corporate preference: Many businesses and corporations prefer to use Outlook because of its advanced features and better integration with other Microsoft products.
  • Offline access: Outlook allows users to access their e-mail offline, a feature not available in Thunderbird email client.
  • Better organization: Outlook provides better email organization features such as folder hierarchy, flags, and categories.
  • Cloud integration: Outlook provides seamless integration with cloud services such as OneDrive for improved storage and accessibility.

Mozilla Thunderbird VS Outlook Comparison

FEATURES

Cost
Open Source
Platforms
Email Support
Calendar
Contacts
Tasks
Chat
News Feed Reader
Smart Folders
Spam Filters
Encryption
Add-ons
Search
User Interface
Integration with other Apps
Support
Updates
Accessibility

MOZILLA THUNDERBIRD

Free
Yes
Windows, macOS, Linux
POP, IMAP
Yes (via Add-on)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Simple and customizable
Limited
Community-based
Regular
High

MICROSOFT OUTLOOK

Paid (Part of Microsoft Office Suite)
No
Windows, macOS, Android iOS
POP, IMAP, Exchange
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Limited
Yes
More polished and professional
High (Especiallu with MS Products)
Microsoft Support
Regular
High

Conclusion

Thunderbird to Outlook Converter manual provides a comprehensive guide on how to effectively convert Thunderbird mailbox files to Outlook and additional resources to ensure a smooth and successful conversion process. By following this guide, users can seamlessly transition from using Thunderbird to Outlook without losing any important data. Remember to always back up your files before starting the conversion process to prevent data loss. This guide makes the transition from Thunderbird to Outlook easy and hassle-free. Should you have any questions regarding the program, please don’t hesitate to contact us.

You probably want to know also on how to convert Thunderbird address book contacts to Outlook?

Frequently Asked Questions

What is Thunderbird to Outlook Converter?

Thunderbird to Outlook Converter is a specialized tool designed to transfer emails, contacts, and mailboxes from Mozilla Thunderbird to Microsoft Outlook. It supports exporting to PST format and direct import into Outlook 2013, 2016, 2019, 2021, and Microsoft 365 Standalone.

How do I convert Thunderbird contacts to Outlook?

Export your Thunderbird address book as VCF (vCard) files, then import them into Outlook using a vCard to Outlook converter or Outlook’s built-in import feature.

For step-by-step instructions, be sure to check out our detailed guide on exporting Thunderbird contacts to Outlook.

Can I use Thunderbird to Outlook Converter for free?

Yes, the software offers a free trial version that allows you to convert a limited number of Thunderbird emails to Outlook. To unlock full functionality, you’ll need to purchase and activate the full version.

How do I install Thunderbird to Outlook Converter?

Simply download the installer from the official website, run the setup file, accept the EULA, and choose your installation directory. The software will be installed in minutes and ready to use.

How do I activate the software after purchase?

After purchasing, launch the software and go to Help > Activate. Paste your activation code into the field and confirm. Activation removes trial limitations and enables full access to all features.

Can I convert Thunderbird emails to PST without Outlook installed?

Yes, the tool supports exporting to standalone PST files, which can be imported into Outlook later. This method is recommended because it doesn’t rely on Outlook account or server settings.

Does the software support Outlook 2013, 2016, 2019, 2021 and Microsoft 365?

Absolutely. Thunderbird to Outlook Converter is compatible with all major Outlook versions, including standard versions of Outlook 2013, 2016, 2019, 2021, and Microsoft 365 Standalone.

Is it safe to use Thunderbird to Outlook Converter?

Yes, the software is 100% safe and secure. It contains no malware, adware, or hidden components. You can download it confidently from the official website.

Will the software leave any files behind after uninstalling?

No. Thunderbird to Outlook Converter uninstalls cleanly using standard Windows procedures and does not leave residual files or registry entries.

What is your refund policy?

If the software has not been activated, you’re eligible for a full refund within 30 days of purchase. Once activated, refunds are not available. For subscriptions, refunds are prorated based on full months elapsed—even if only one day has passed.

Do I need to compact Thunderbird mailboxes before conversion?

Yes, we recommend compacting your Thunderbird mailboxes before starting the conversion. This optimizes mailbox files and speeds up the conversion process.

Can I convert MBOX files to PST using this tool?

Yes, Thunderbird to Outlook Converter can handle MBOX to PST conversion, even if Thunderbird is not installed. It’s a reliable solution for migrating archived mailboxes.

Is Thunderbird Better Than Outlook?

The choice between Thunderbird and Microsoft Outlook depends on your specific needs and preferences. Thunderbird is a free, open-source email client known for its strong privacy controls, flexibility, and community-driven development. It’s ideal for users who value customization and independence from proprietary ecosystems.

On the other hand, Microsoft Outlook is part of the paid Microsoft Office suite and offers robust features for business users, including calendar integration, task management, and seamless connectivity with other Microsoft services like Exchange, Teams, and OneDrive.

Both email clients have their strengths—Thunderbird excels in simplicity and privacy, while Outlook shines in enterprise-level productivity and integration. The best choice ultimately depends on what features matter most to you.