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Written By Rohit Singh
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Updated on September 11th, 2025
To stay productive in an open-source environment, the user decides to switch from Windows to Linux. Outlook isn’t supported in Linux. Therefore, the user chose to import Outlook contacts to Thunderbird email client. This blog will let you know how to import contacts to Thunderbird. We have outlined the entire process step-by-step with all the information you need. Also, there is a reliable tool, Cigati PST Converter, that we’ll talk about in detail. Follow along with ease.
There are several advantages of importing Outlook’s contact data into the Thunderbird email client. Here’s why the users make this migration:
Here, you’ll find a detailed explanation for moving your Outlook PST contacts to Thunderbird. Let us first begin with the manual methods followed by a professional tool.
Follow the step-by-step process to begin the migration process:
Step 1: Export Contacts from MS Outlook
Step 2: Migrate Outlook Contacts to Thunderbird Address Book
Import Outlook PST contacts to Thunderbird in bulk with the trusted Cigati PST Converter. Not only Thunderbird, but it also exports to other popular email platforms like Gmail, Hotmail, etc. Besides this, it quickly converts Outlook PST contacts to several file formats, ensuring maximum compatibility. Also, the software saves users’ time with bulk conversion, smart filter options, and duplicate email detection and removal. Plus, with an inbuilt preview option, users can verify their data before executing the conversion process.
To proceed with the automated tool steps, you need to first download the Outlook contacts locally. Follow the mentioned steps:
After downloading the PST contacts file, follow the step-by-step process:
This technical blog discussed the needs that users consider when switching from Outlook to Thunderbird. It also details how users import Outlook contacts to Thunderbird using an expert automated solution. Moreover, we have also explained a manual approach for those who want to import only a few contacts. The user can now choose from both approaches according to their requirements.
You May Also Read: Transfer Outlook Contacts to iCloud
Ans: The Thunderbird email client supports importing contacts from CSV and VCF files only. The Outlook PST contacts must be exported in one of these formats first and then imported to Thunderbird.
Ans: Yes. The Cigati PST Converter can simplify the process by directly converting PST contacts to Thunderbird-compatible formats. But, before the conversion steps, you need to download the Outlook contacts PST file.
About The Author:
Rohit Singh is an Email Backup, Recovery & Migration Consultant and is associated with Software Company from the last 3 years. He writes technical updates and their features related to MS Outlook, Exchange Server, Office 365, and many other Email Clients & Servers.
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