Import PST to Thunderbird on Mac With and Without Outlook- 2025 Guide
Amelia James
August 10th, 2026
Summary: You can protect your Outlook data from getting corrupted, by importing the Outlook Data Files(.pst) into the Thunderbird application. Wondering how to do it? Don’t worry, today we will share some reliable techniques to import PST to Thunderbird using the Mac PST Converter and other solutions.
Outlook is a popular email client but its oversized PST files and multiple other reasons are compelling users to import Outlook data files to Thunderbird. Mozilla Thunderbird is a user-trusted email application used to store and exchange important business data. Today, we are here to talk about how you can securely import and open PST files in Thunderbird. Without wasting much time, let’s directly start with prominent solutions for this process.
Import PST to Thunderbird Without Outlook- Pro Method
To import the PST to Thunderbird without Outlook, you can use the PST Converter Tool. It is one of the safest utilities that securely import Outlook PST files to Thunderbird without any data loss. Its advanced features help you to increase your conversion efficiency with 100% accurate output. Here are the steps to start using this utility.
Steps to Import PST to Thunderbird
- Install and Launch the PST Converter Tool on your system.
- Add the PST files you would like to import and click Next.
- Select the folders you want to import and hit the Next button.
- Apply some additional features of this utility.
- Lastly, click Convert to convert PST to Thunderbird without Outlook.
By following these steps, you can safely and quickly perform the conversion process. Moreover, you can import PST to Office 365, Gmail, Yahoo, iCloud, IMAP, and other email clients by using this software.
4 Prominent Reasons to Use PST Converter Software
- Easy and Effective Graphical Interface
- 24*7 User Assistance
- No PST File Size Restrictions
- Allows Customisation in Output
In the upcoming section, let us discuss how we can make Thunderbird import Outlook PST using MS Outlook.
Import PST to Thunderbird Using MS Outlook
The whole process will take place in five board parts.
Step 1: Enable IMAP Access in your Gmail Account
- Sign In to your Gmail account and click the settings button.
- Tap See all settings and click Forwarding and POP/IMAP.
- Now, click the Enable IMAP option.
- Finally, your Gmail account is now IMAP enabled.
Step 2: Add Gmail Account in MS Outlook
- Go to Outlook.com and tap on the Tools option.
- Click the Account option to process further.
- In this pop-up, hit on the + icon to add the Gmail account.
- Hit on the add account option, enter your Gmail address, and tap Continue.
- In this window, tap Continue and sign in to your default Google browser.
- After that, you will be redirected to MS Outlook.
- Lastly, the Gmail account will be added to MS Outlook.
Step 3: Copy and Paste the Outlook PST Files into Gmail Account
- Go to the emails you want to import.
- Drag and Leave the files in your Google Mail Account.
- Finally, your Outlook PST files are now added to Gmail.
Step 4: Save Outlook PST Files using Google Takeout
- Sign In to the Google Mail account and click this link http://www.google.com/takeout.
- Click the mails option and select the folders in which you have added the Outlook PST files.
- Now, tap on delivery method, file type, and archive size, and click Create Archive.
- Once the process is done you will be notified via email.
- Download the archived files to save the PST files in MBOX file format.
Step 5: Bring In Converted PST Files into Mozilla Thunderbird
- Firstly, open the Thunderbird application and install the ImportExportToolsNG add-on.
- Here, click the Tools option in the menu bar.
- Now, click on the ImportExportToolsNG option and hit on the Import MBOX file option.
- Add the MBOX file containing your Outlook PST data.
- Finally, you have successfully made Thunderbird import Outlook PST file.
This method is risky as there is no assuirty to maintain the original folder/data hierarchy. Also, it will take a long time to import Outlook data files to Thunderbird. Hence, a professional PST Converter tool is the best alternative to this solution.
Also Read: Convert PST to PDF
Final Words
In conclusion, the only way to import PST to Thunderbird is by using professional PST Converter Software. It provides effective and virus-free import results in a less span of time. Also in this solution, you can import Outlook PST files to Thunderbird without using MS Outlook.
Frequently Asked Questions
Ques. How do I import PST files into Thunderbird without Outlook?
Ans- You can import PST files into Thunderbird without Outlook using the third-party PST Converter Tool. To know the procedure, follow the given steps.
- Install and Launch the PST Converter Tool.
- Add the required PST files and click Next.
- Now, choose Thunderbird as the saving option and log in to its account.
- Finally, click Convert to start the import procedure.
Ques. How do I copy my Outlook address book to Thunderbird?
Ans- To copy the Outlook address book/contacts to Thunderbird, follow the given steps.
- Launch Outlook and copy the contacts you want to transfer to the Thunderbird application.
- Now, go to your Thunderbird account and create a folder.
- Finally, paste your copied contacts into Thunderbird’s folder.
About The Author:
Amelia is the mistress of the webmail clients like Office 365, Gmail, Yahoo, Hotmail, and Opera Mail. Her research on downloading emails from webmail is outstanding. She has given the solution to download emails from webmail clients to a Mac device with all the mailbox items. She’s been into webmail solutions since 2010. In her free time, she reads books and writes technical blogs.
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