Thunderbird Converter

Best Thunderbird Converter to Convert Thunderbird Profiles, Mailboxes to PST, PDF, Live Exchange Server, Office 365, Gmail, G Suite.

  • Move & Convert Thunderbird profiles to PST, PDF, EML, MSG, MBOX, Office 365, Exchange, Gmail, G suite.
  • Convert Thunderbird profiles includingEmails, Contacts & Calendars.
  • Helps to convert mailboxes from Default Configured Thunderbird profiles
  • Supports to Convert Orphan Thunderbird profiles and emails.
  • Convert Multiple or Batch Thunderbird profiles using Folder Mode.
  • Thunderbird Converter allows to import Thunderbird mail folder along with meta-headers, time-stamp and attachments
  • Advance Filter options available for - Date, to, from, to, cc, bcc, subject.
  • Maintains Original Folder Structure of Thunderbird Mailbox
  • Allow users to Convert all Identities from Thunderbird Profiles
  • Migrate & Convert data from Thunderbird.sbd folder
  • Supports to auto locate configured Thunderbird profile.
  • No data loss during thunderbird migration process.
  • Thunderbird Installation is NOT required in case of migrating orphan Thunderbird profile.

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Direct Conversion to Cloud Apps

Thunderbird Converter software gives n number of common output options for moving Thunderbird files which also includes Cloud/Webmail Applications. It means now a user can directly export their Thunderbird to Office 365, Exchange, and other required cloud-based application by providing the login-credentials of the particular account.

The tool will supports to save Thunderbird files to following cloud-based applications -

  • Office 365
  • Exchange Server
  • Gmail
  • G Suite
  • Yahoo Mail

Convert from Default & Orphan Thunderbird Profile

CubexSoft Thunderbird Converter is a versatile utility that provides two ways to select Thunderbird profile or data for further conversion. In both ways, software will generate a preview of all emails & attachments present in the selected thunderbird profile. Thunderbird Export allow users to -

  • Auto-Locate Default Thunderbird Profile – Thunderbird Export detects the configured Thunderbird profile and will display the location for the same. Using this method, there is no need to add the thunderbird mailboxes manually. This feature can be accessed by choose Convert Default Configured Thunderbird Profile option form the very first screen of the software interface.
  • Select Thunderbird Profiles Manually – Using this option, users can migrate & convert Thunderbird profiles that are saved separately to your PC or laptop. In this method, there are 2 ways to select the orphan thunderbird mailboxes -
    • File Mode - This mode to be used when you are converting single Thunderbird file.
    • Folder Mode - This mode is to be used when you are converting multiple Thunderbird files.

Convert from All Thunderbird Files

The Thunderbird Converter to convert Thunderbird data from following Thunderbird files:

  • No Extension Mailbox - Mozilla Thunderbird supports to save emails & attachments in a file having same name as the mail folder with no extension. The software supports to convert data from those files too.
  • SBD Files - Thunderbird saves SBD folder that holds the folder structure of Thunderbird profile. Suppose, if Inbox mail folder contains emails and sub-folders like - SUB1 & SUB2, it will create a no extension Inbox file having inbox's emails as well as Inbox.sbd file storing no extension SUB1 & SUB2 files with their respective emails. Thunderbird Converter supports to convert data from those SBD files too.
  • EML Files - When you are exporting Thunderbird emails using Import/Export add-ins, you will get EML files. If you have those exported EML files, you can easily convert them too.
  • MBOX Files - When you are exporting Thunderbird mailboxes using Import/Export add-ins, you will get MBOX files. If you have those exported MBOX files, you can easily convert them too.

Accurate Conversion of all Thunderbird Data

Thunderbird Converter Tool Supports Accurate Migration of Thunderbird Emails, Contacts & Calendars


Email Messages Convert Thunderbird emails or mailboxes that are stored in your PC/Laptop as EML, MBOX, SBD, No Extension File to Office 365, Exchange Server, Gmail , G Suite, PST, PDF, EML, MSG, MBOX etc.
Email Attachment Thunderbird Converter has the ability to convert all emails with their respective email attachments. It supports to transfer, move, save all kind of attachments. Some very common formats of attachments are - PDF, XLS, DOC, CSV, TXT, HTML, RTF, png, jpg, gif, tiff, etc.
Email Headers Thunderbird Export supports to convert Mozilla Thunderbird emails with accurate message header details. It supports to save exactly same email header elements like - To, From, CC, Bcc, Subject, Send/Received Date & Time.
Folder Hierarchy The software supports to save accurate folder structure of Thunderbird mailboxes.


Contacts The software has the ability to export, move, convert, transfer, migrate Thunderbird CSV Contacts or Address Book to Office 365 & PST (Outlook) only.


Calendar The software has the ability to export, move, convert, transfer, migrate Thunderbird ICS Calendars to Office 365 & PST (Outlook) only.

Other Relevant Features of Thunderbird Export Tool

Know all the Attributes of the Program to Move MBOX Mailboxes to Different File Formats

Batch Thunderbird Conversion

The CubexSoft Thunderbird Converter has the ability to perform batch conversion of various Thunderbird profiles in a time. To avail the batch conversion option, use Folder MODE option so as to select a folder having multiple Thunderbird data or profiles.

Convert Thunderbird Email with Attachments

CubexSoft Thunderbird Converter supports to convert thunderbird mailboxes with all email elements that includes email attachments too. During the conversion, the software converts exactly the same email elements like - to, cc, bcc, date, subject, time etc.

Convert Data from SBD Folder

Thunderbird Converter @ CubexSoft, is capable to convert thunderbird emails from Thunderbird SBD folders too. Users can select Thunderbird SBD folder while selecting profile and can migrate thunderbird data smoothly.

Convert All Identities for Thunderbird

Thunderbird Export tool supports to convert all identities from the selected Thunderbird profile. Users can perform conversion of multiple or single identity from Thunderbird profile by just selecting or deselecting the identities from the tree view of the software.

Maintains Accurate Folder Structure

The program supports to convert all emails messages from Thunderbird with proper mail folder hierarchy or folder structure. The software has been developed with powerful algorithms that maintains the integrity of thunderbird data accurately.

Filtered Migration with Advanced Filter Option

Thunderbird Export tool offers selective or filtered migration by allowing users to apply advanced filter options to their migration process. The software has following filters available - Date, to, from, cc, bcc, Subject. By applying filters these fields users can get the opportunity convert Thunderbird data as per the choice.

Preview Data Before Migration

The Thunderbird Converter offers its users to preview the email data of Thunderbird profile before converting them into other email format. In preview mode, user scan van view every detail of an email message like - email header, email body, email folder etc.

No Installation of Thunderbird Required

When converting Mozilla Thunderbird data to other email formats, this software does not require any installation of Mozilla Thunderbird in you PC or Laptops.

Auto-Locates Default Thunderbird Profile

Many times, actual location of Thunderbird mailboxes is not known by the users. So, in this case, Thunderbird Export auto locates the Thunderbird mailboxes and will add the mailbox files for conversion automatically.

Option to Rename Thunderbird Emails

With this Thunderbird Converter utility, users are offered with multiple file naming to be selected from. They can save the converted files according to the pre-defined patterns like: Subject + Date, From + Subject + Date, Subject + From + Date and many more.

Smart Graphical User Interface

Thunderbird Converter comes with simple, easy and attractive interface that can be efficiently used by all users without any hindrances. It provides smooth processing of Thunderbird conversion.

Windows Based Program

The Thunderbird File Converter is well-suitable with both 32-bit and 64-bit Windows Operating system. Users can easily achieve the entire task of Thunderbird mailbox migration on any Windows OS platform such as Windows 10, 8.1, 8, 7, XP, Vista, etc.

Screenshots of Thunderbird Converter Software

Below screenshots are added so that you can understand the working interface of Thunderbird Converter Tool.

Thunderbird Converter Free Download

Know all the specification of CubexSoft Thunderbird Export Tool

Software Name: CubexSoft Thunderbird Converter
Free Download:

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Version: 1.0
Processor: Minimum 2.4 GHz Processor
RAM: Minimum 512 MB
Minimum Hard Drive Space: 18.8 MB
Operating System: Windows OS: Windows 10, 8.1, 8, 7, Vista, XP, Windows Server 2019, 2016, 2012, 2008, 2003, etc.
Demo Version: Download Thunderbird Converter Free Trial version to test the software functionality. Free Trial is limited as the Thunderbird Converter can export 20 emails from each Thunderbird files.
Installation & Un-installation for Windows: Guide Install/Uninstall EULA

Frequently Asked Questions

Commonly Asked User's Questions and Answers regarding Thunderbird Converter Tool

CubexSoft Thunderbird Export is a simple wizard like application that works as follows -

  • Step 1 –: Install & Run Thunderbird Export Tool.
  • Step 2 –: Select between 2 options and click on Next button-
    • Convert Default Configured Thunderbird Mailboxes - Using this option, software will directly locate the thunderbird mailboxes configured and will provide a preview of all email messages and then click Next.
    • Let Me select Other Thunderbird mailboxes saved separately - Using this option, users will have to select thunderbird mailboxes manually. For this option software offer 2 modes for selecting mailboxes - File Mode for single conversion & Folder Mode for multiple conversion. Then its will provide preview of selected mailboxes and then click Next.
  • Step 3 –: Select the Output Format to save the Thunderbird mailboxes and click on Next button
  • Step 4 –: Select sub-options like Advanced Filters, File Naming Option, Split Resultant Files, etc. according to your choice.
  • Step 5 –: Then, click on Browse and select destination location to save the converted thunderbird profiles.
  • Step 6 –: Now click on Export to start the Thunderbird migration. You can view the entire conversion progress during the process.
  • Step 7 –: Once the conversion finished, a message will show i.e. Conversion is done. Then hit on the OK to accomplish the procedure.
  • Step 8 –: After following these above mentioned steps you can also save the complete migration details in CSV file by selecting the Save Report option. It includes File Name, File Size, Total Items, Items, Duration, Saved To & Status.

No, CubexSoft Thunderbird Converter is completely Windows based utility that only run on windows OS.

Thunderbird File Converter program supports number of file formats like – PST, PDF, EML, MSG, MBOX, Exchange Server, Office 365, Yahoo, Gmail, G Suite. You can simply test the software working by downloading its Trial edition, which is completely FREE. Demo edition of Thunderbird File Converter will supports all the formats, but will transfer only first 20 emails.

Thunderbird Migrator successfully converts Thunderbird EML files too. While selecting Thunderbird mailboxes , select those EML files and then proceed to migrate to Office 365.

Yes, Thunderbird Migrator has the ability to convert all Thunderbird emails along with all of the email attachments.

Yes, Thunderbird Export has option to convert Thunderbird emails or mailboxes to Adobe PDF files.

Yes, software can easily move, migrate, transfer, convert Thunderbird SBD folders to other email formats.

No, MSF are Mail Summary Files of Thunderbird, it only contains the header information of each mailbox. Thunderbird created MSF files with each no extension mailbox file. So, instead of converting MSF files, convert no extension mailbox file.

Thunderbird Converter software will automatically detects the Thunderbird mailbox location and thus convert Thunderbird mailboxes even when the mailbox location is unknown to the user.

No. there is no requisite to have or install Mozilla Thunderbird or any other supported email client while using the tool to export your Thunderbird files.

With the free demo edition of CubexSoft Thunderbird Converter, you can save only 20 emails from each Thunderbird mailbox.

First save all your Thunderbird files in a folder. After installing the software, click "Browse Folder" button. Or you can simply drag and drop the folder having Thunderbird files into software window. Select the required file format from the existing options and migrate your multiple Thunderbird files in batch.

It completely depends on the size of the Thunderbird files added for migration. Small size Thunderbird files will take less time.

No, there is no requirement to configure Outlook in your machine for converting Thunderbird files to Outlook.

You can try using the Trial version which is the copy of the licensed edition of the Thunderbird Converter software, helps you to analyze the software. If the results are agreeable, we will guarantee 100% conversion results.

Absolutely Yes! The CubexSoft Thunderbird Converter - completely safe and protected Thunderbird Mail Converter comes with 30 days money back assurance. If the outcomes of Thunderbird file conversion is not agreeable or not adequate, you can request for refund. So you become 100% risk-free and secure while buying the software.

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