Local Folders in Mozilla Thunderbird

  C:\Users\<username>\AppData\Thunderbird\Mail\Local Folders

  C:\Users\<username>\AppData\Roaming\Thunderbird\Profiles\<profile name>\Mail\Local Folders

1. Create a new storage location for Thunderbird Local Folders on your local disk partition

2. Move the contents of Local Folders from default to new storage location

from

 C:\Users\<username>\AppData\Thunderbird\Mail\Local Folders

or

 C:\Users\<username>\AppData\Roaming\Thunderbird\Profiles\<profile name>\Mail\Local Folders

to

 D:\My Local Folders

1. Open your Thunderbird application and click on Tools in the upper menu

2. Click on Account Settings in the pop-up menu

3. Select Local Folders in lowermost part of the Account Settings menu

4. Click on Browse to locate a new Local Folders directory (My Local Folders)

5. Find and select My Local Folders as the Local Folders directory

6. Set My Local Folders as the Local Folders directory

1. Click on Local Folders in the mailboxes and folders list and select New Folder… in the pop-up menu

2. Enter the name of the new local folder, e.g. Archive 2015 and click Create Folder