If you’ve tried to open MSG files in Thunderbird, you’ve probably realized it’s not a straightforward process. The reason is simple — Thunderbird doesn’t support the MSG file format by default. MSG files are native to Microsoft Outlook and contain detailed email information such as sender data, attachments, message formatting, and metadata. Without the right tool, Thunderbird can’t read or display these files properly.

To make this task easier, you can use a dedicated solution like the Cigati MSG File Viewer . This free, user-friendly software lets you open and read MSG files without installing Outlook. It allows users to preview emails individually or in bulk while showing complete details, including subject lines, sender information, attachments, and message hierarchy. This makes it perfect for anyone who needs to review or extract data from MSG files before moving them to Thunderbird.

Once you’ve accessed your MSG files through Cigati MSG File Viewer, you can easily export them into formats compatible with Thunderbird, such as EML or MBOX. After conversion, importing the files is simple using Thunderbird’s built-in import options or extensions like “ImportExportTools NG.” This method ensures that your emails — along with attachments and formatting — stay fully preserved during the transfer.

In conclusion, Cigati MSG File Viewer provides an effortless way to open, view, and convert MSG files for Thunderbird users. It saves time, maintains data accuracy, and eliminates the need for Outlook installation, making it the best choice for handling MSG files with ease.