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.

Avatar for Username

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

Este fío arquivouse. Faga unha nova pregunta se precisa axuda.

Get old emails from non-working Thunderbird

will26
will26
more options

BACKGROUND I updated my OS to Big Sur (mac). The Thunderbird app no longer worked. I downloaded and installed the newer version and it works fine. PROBLEM I need to migrate the emails from the old Thunderbird, which can not be launched, to the new Thunderbird. I can see the files from the old Thunderbird, so hopefully it will just be a question of moving the data over. Thanks, Will

BACKGROUND I updated my OS to Big Sur (mac). The Thunderbird app no longer worked. I downloaded and installed the newer version and it works fine. PROBLEM I need to migrate the emails from the old Thunderbird, which can not be launched, to the new Thunderbird. I can see the files from the old Thunderbird, so hopefully it will just be a question of moving the data over. Thanks, Will

All Replies (1)

День сумо
День сумо
more options

Hello there will We have read your message. We try to help you.

Can you explain what is going on on your new operating system? On your IMac or MacBook Pro?

How , does it come like this? Did you updated The software from Thunderbird? A non working Thunderbird .exe file?

https://support.mozilla.org/en-US/products/thunderbird/install-migrate-and-update/copy-your-personal-information-one-thunderbird-another



Greetings Firefox volunteer

День сумо modificouno o