Windows 10 reached EOS (end of support) on October 14, 2025. For more information, see this article.

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

Can I set a new default profile in Thunderbird

  • 3 replies
  • 0 have this problem
  • 18 views
  • Last reply by david

gsawkins
gsawkins
more options

I am in the process of transferring machines to a new machine for Win 11 At the same time, I have moved from an older version of Thunderbird to the latest version in the .esr release channel. I have now a new default profile with the thunderbird upgrade but want access to the data of the older profile. The older profile was running under an earlier version, release 140. Can I change the existing default profile to be the profile from the older thunderbird version and what are the implications

I am in the process of transferring machines to a new machine for Win 11 At the same time, I have moved from an older version of Thunderbird to the latest version in the .esr release channel. I have now a new default profile with the thunderbird upgrade but want access to the data of the older profile. The older profile was running under an earlier version, release 140. Can I change the existing default profile to be the profile from the older thunderbird version and what are the implications

Chosen solution

Ver 146 did some profile upgrades. If you're want to review a specific message folder, a safer approach would be to import that message folder into the Local Folder of current profile. If you just want to read the messages, the website https://www.mbox-viewer.com/ allows that. You can import by installing the importexporttools NG addon. highlight Local Folders, rightclick and select import mbox, and then locate the message folder in old profile.

Read this answer in context 👍 0

All Replies (3)

david
david
  • Top 10 Contributor
more options

Chosen Solution

Ver 146 did some profile upgrades. If you're want to review a specific message folder, a safer approach would be to import that message folder into the Local Folder of current profile. If you just want to read the messages, the website https://www.mbox-viewer.com/ allows that. You can import by installing the importexporttools NG addon. highlight Local Folders, rightclick and select import mbox, and then locate the message folder in old profile.

gsawkins
gsawkins Question owner
more options

thanks for the help, looking good so far

david
david
  • Top 10 Contributor
more options

Thanks for the feedback. :)

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.