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

All folders disappeared

  • 1 reply
  • 0 have this problem
  • 3 views
  • Last reply by Toad-Hall

more options

Since yesterday all of my folders in thunderbird disappeared! So I can not see anymore my emails. They are not completly disappeared, because if I use the search option in thunderbird to find a email, the email apear. Calendar and addressbook work normaly. I checked different view options but none of them work and I keep not seeing my folders. Can it be that the problem has arisen due to the last update from thunderbird?

Since yesterday all of my folders in thunderbird disappeared! So I can not see anymore my emails. They are not completly disappeared, because if I use the search option in thunderbird to find a email, the email apear. Calendar and addressbook work normaly. I checked different view options but none of them work and I keep not seeing my folders. Can it be that the problem has arisen due to the last update from thunderbird?

Chosen solution

Try this:


  • Menu icon > Help > More TRoubleshooting Information
  • Under 'Application Basics' about half way down is 'Profile Folders' - click on 'Open Folder'
  • In mac this might be called 'Open Finder'

It opens a new window showing the contents of the 'profile name' folder.

* Exit Thunderbird.

In the 'profile name ' folder, delete the following files:

  • folderCache.json
  • folderTree.json
  • session.json
  • xulstore.json

Start Thunderbird.

Read this answer in context 👍 1

All Replies (1)

more options

Chosen Solution

Try this:


  • Menu icon > Help > More TRoubleshooting Information
  • Under 'Application Basics' about half way down is 'Profile Folders' - click on 'Open Folder'
  • In mac this might be called 'Open Finder'

It opens a new window showing the contents of the 'profile name' folder.

* Exit Thunderbird.

In the 'profile name ' folder, delete the following files:

  • folderCache.json
  • folderTree.json
  • session.json
  • xulstore.json

Start Thunderbird.