24-06-2026 05:58 AM
I have several MBOX files with me and i want to import MBOX files into Thunderbird email client.
I've come across different methods, including manual techniques and third-party tools, but I'm unsure which approach is the most efficient, especially when dealing with multiple or large-sized MBOX files. Some methods also seem complicated for users who are not very technical.
Suggest me any reliable tool for this!
24-06-2026 03:46 PM
@lucifer_tech, support requests aren't allowed here. Please post your question at
https://support.mozilla.org/en-US/questions/new/thunderbird/form.
25-06-2026 11:12 PM
The add-on ImportExportTools NG is a good manual solution when you just want to import a few MBOX files. But, it can be a time-taking process, in case you have several or large MBOX files.
To simplify, you can go for SysTools Thunderbird Importer. This tool helps you import an unlimited number of MBOX files at once into Thunderbird without losing a single email, attachments, or folder hierarchy. This is a straightforward approach to complete the import process without installing additional files in just a few steps.