We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Where do I find the Thunderbird address book on my hard drive?

  • 2 cavab
  • 1 has this problem
  • 1 view
  • Last reply by maxfindlay

more options

I am buying a new desktop and I'm planning to migrate to Thunderbird from Microsoft Outlook. However for boring legal reasons it is very important that my address book is stored locally on my computer and not in the cloud. I also need to back it up regularly and keep the backup on an external hard drive. Where do I find the Thunderbird address book on my hard drive please?

I am buying a new desktop and I'm planning to migrate to Thunderbird from Microsoft Outlook. However for boring legal reasons it is very important that my address book is stored locally on my computer and not in the cloud. I also need to back it up regularly and keep the backup on an external hard drive. Where do I find the Thunderbird address book on my hard drive please?

Chosen solution

Thank you very much for such a prompt reply, Zenos. Am very grateful.

Read this answer in context 👍 0

All Replies (2)

more options

It is stored in files with a .mab extension, in your profile.

I'd suggest just backing up your entire profile. Individual mab files are of limited value for backup purposes.

https://support.mozilla.org/en-US/kb/profiles-tb

more options

Seçilmiş Həll

Thank you very much for such a prompt reply, Zenos. Am very grateful.