Welcome to Thunderbird Add-ons.
Add extra features and styles to make Thunderbird your own.Close
About this Add-on
Thunderbird doesn't have any possibility to switch to other folders when the folder pane is completely hidden. Hiding the folder pane frees quite a lot of screen real estate, allowing for much wider thread and message windows. The Folder Selection Box just adds this functionality.
After installation there's a new entry "Select folder" in the view menu (or Ctrl-D) which pops up the folder selection dialog.