Can Thunderbird convert MBOX to PST online? Yes, download the latest MBOX file converter toolkit, software helps you in conversion of messages from MBOX files into PST Outlook profile by keeping all original data formatting, meta properties, embedded images, attachment files, etc. Batch data conversion is also allowed by using this tool to convert multiple data files from Thunderbird. mbox into Outlook .pst mailboxes. By using our MBOX email converter tool you are allowed to convert Thunderbird MBOX files into PST other than EML, EMLx, MSG, CSV, PDF, HTML, Yahoo mail, O365, etc. Download the freeware Thunderbird MBOX to PST converter tool to test its working ability.