My Junk folders have an Empty option.

My Junk file has no empty junk in the drop down; only Open in a New Tab, Open in New Window, Delete, Rename, Favorites Folder, & Properties.

Tried Delete once, it eliminated the entire folder

BUT found an empty Junk in a sub folder of JUNK, named with my e-mail address, that worked, also Local Folders that is empty already.

Was rather hard to find.

There is still room for improvement, in some future update.

Thanks for the drop down picture, was hard to read, but got me to rexplore.

Does this Junk folder have the appropriate icon?

Given that you have found a deleted Junk folder, I wonder if the one you're now using is a hand-made replacement, and maybe doesn't have all the appropriate properties.

You could try to restore the deleted one and see if it works better. Or get yourself the FolderFlags add-on and use it to re-set your Junk folder's properties.

https://addons.mozilla.org/en-US/thunderbird/addon/folderflags/

Icon is an orange "tear drop", on Junk and its 2 subfolders.

Not sure how subfolders got there. Think I did delete the junk folder once trying to empty it.

Thanks, happy to be able to empty junk emails w/o opening them.