In Gmail’s IMAP implementation, labels become Thunderbird folders. When you label a message in Gmail, Thunderbird creates a folder with the same name and stores messages there.
By default, Thunderbird shows all Gmail folders that you set up. To choose which Gmail folders to display in Thunderbird, you can change a few settings.
- In Thunderbird, go to the File menu and select Subscribe.
- Clear the check boxes next to the folders that you don’t want to display in Thunderbird.
- Select OK.
- The unchecked folders don’t display in Thunderbird.