Thunderbird Email Backup Tool
Create an independent backup of the IMAP accounts you use inside Mozilla Thunderbird, without touching your Thunderbird profile.
Why users choose Thunderbird Email Backup
- Selective folder and date-based exports for controlled backup jobs.
- 15+ output formats for migration, legal, audit, and archive workflows.
- Works with large mailboxes while preserving headers and attachments.
What is Thunderbird Email Backup?
Create an independent backup of the IMAP accounts you use inside Mozilla Thunderbird, without touching your Thunderbird profile.
This dedicated page focuses on Thunderbird Email Backup, built on the same secure email backup engine used across OnlinePCTools. Instead of relying solely on your provider's interface, you can connect using IMAP, choose exactly which folders to include, and download a portable archive that lives on your own storage — external drive, NAS, encrypted container, or cloud‑synced folder.
The process is straightforward: sign in with the same mailbox you use in Mozilla Thunderbird, select folders like Inbox, Sent, Archive, or custom labels, apply an optional date range, and then export in the format that best matches your next step. Whether you are migrating to another client, preparing for an audit, or simply keeping a personal copy, you stay in control of where your messages live.
Because the export uses open formats such as PST, MBOX, EML, and PDF, you are never locked into a single vendor. You can browse the same backup in different applications, hand it over to colleagues or legal teams, and keep it for years even if you later close or change your Mozilla Thunderbird account.
Best export formats for this tool
Use MBOX or EML when you plan to keep using Thunderbird, or PST when you are moving messages into Microsoft Outlook.
All formats preserve key headers such as sender, recipient, subject, and date, and most keep attachments intact so nothing important is lost.
Typical use cases
- Archiving a mailbox before switching providers or domains.
- Keeping an offline copy of critical conversations for legal or compliance reasons.
- Creating periodic backups to protect against accidental deletion or account issues.
Why use Thunderbird Email Backup?
This page is tailored for Mozilla Thunderbird workflows and includes migration-friendly formats, folder-level selection, and secure export options for personal and business mailbox backups.
Direct Mozilla Thunderbird connection
Connect to your Mozilla Thunderbird account with secure IMAP authentication and scan mailbox folders in one place.
Selective folder and date range export
Choose only the folders and time period you need, so you can create focused archives for audits, legal review, or migration planning.
15+ export formats
Download backup data as PST, MBOX, EML, MSG, PDF, CSV, JSON, and other formats so different teams can consume the same archive.
Privacy-focused processing
Credentials are used for the active session only, with encrypted transport and no persistent storage of mailbox credentials.
Back up Mozilla Thunderbird in 4 steps
Enter Mozilla Thunderbird credentials
Provide your mailbox address, password or app password, and server details for Mozilla Thunderbird.
Choose output format
Select PST, MBOX, EML, PDF, CSV, JSON, or another format depending on whether your goal is migration, archival, or reporting.
Select folders and optional date range
Pick Inbox, Sent, Archive, and custom folders. Add date filters to run partial or incremental backup cycles.
Generate and download backup
Start the backup, review the fetched count, and download a portable archive you can store and reuse later.
Export format guide for Thunderbird Email Backup
Pick output based on where you will open, import, or analyse mailbox data next.
Thunderbird Email Backup vs manual webmail export
Manual download from webmail usually gives limited format options and poor folder-level control. This dedicated tool provides selective exports, date filtering, and multiple output formats in one workflow.
Questions about Thunderbird Email Backup
Can I migrate from Mozilla Thunderbird to another email service with this tool?
Are attachments preserved in the exported backup?
Can I back up only a specific folder or project mailbox?
How do I run recurring backup cycles without exporting everything each time?
User feedback
“We used the Thunderbird Email Backup page to archive mailbox data before a tenant migration. Folder mapping and export options made the transition much smoother.”
David Brown
IT Operations Lead
“For our audit cycle, we needed searchable and shareable exports. The Thunderbird Email Backup workflow gave us consistent files for compliance review and legal retention.”
Nina Kapoor
Compliance Specialist
“I support multiple clients with different providers. Having a dedicated Mozilla Thunderbird backup page with the same workflow saves me a lot of setup time.”
Arun Verma
Consultant
Start using Thunderbird Email Backup
Connect your Mozilla Thunderbird mailbox, choose export format, and download a complete archive for migration, compliance, or long-term storage.