Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

migrating emails from thunderbird on MAC to WIN

  • 1 reply
  • 0 have this problem
  • Last reply by sfhowes

more options

Hello, I transferred my emails from online MAC to local folders on an external drive, then re-copied them as my local folders on the WIN laptop... Yet after re-starting, the emails subject only shows-up while the message shows 0 bytes, despite the Inbox file shows >8GB, but is not recognized/read by the app. (seems to me indexing was lost?). Tried to import the file from the app's tool, but it didn't work as the tool expected a profile or outlook file. Any help to migrate my emails in a readable format? Thx.

Hello, I transferred my emails from online MAC to local folders on an external drive, then re-copied them as my local folders on the WIN laptop... Yet after re-starting, the emails subject only shows-up while the message shows 0 bytes, despite the Inbox file shows >8GB, but is not recognized/read by the app. (seems to me indexing was lost?). Tried to import the file from the app's tool, but it didn't work as the tool expected a profile or outlook file. Any help to migrate my emails in a readable format? Thx.

All Replies (1)

more options

Helpful?

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.