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

Migration from Thunderbird 68.12.1 to 78.4.3

  • 1 cavab
  • 1 has this problem
  • 4 views
  • Last reply by sfhowes

more options

Once I installed 78.4.3 many of my folders and subfolders were no longer accessible. They are still in the proper Profile folder, but do not show up when I open Thunderbird. Is there a fix for this? If not what do I need to do to go back to 68.12.1 and have access to these folders?

Once I installed 78.4.3 many of my folders and subfolders were no longer accessible. They are still in the proper Profile folder, but do not show up when I open Thunderbird. Is there a fix for this? If not what do I need to do to go back to 68.12.1 and have access to these folders?

All Replies (1)

more options

Are these folders in an IMAP account or in Local Folders? For the latter, close TB, open the Mail/Local Folders location of the profile, delete the .msf files that are present for every mbox file that has no extension, is named for the folder, and has the same name as the .msf, e.g. Folder and Folder.msf. Restart TB and see if the folders appear under Local Folders in the Folder Pane.