I'm running Thunderbird 115.4.1 (64-bit), using Unified Folder options for most of my mail organization for three POP accounts. When I manually clear the (unified) Junk folder, as soon as I answer "yes" to the little warning option (I have chosen to engage it), everything in the folder instantly disappears, along with the number-in-the-circle showing the number of unread messages. When I take this same action with the (unified) Trash folder, I click "yes" and nothing at all ''appears'' to happen. All the messages continue to sit there. Once I navigate away to any other folder, and then come back to Trash, sure enough, it's empty. But the little number-in-the-circle that shows how many unread messages had been in the folder before it was cleared still sits there in the left column. That number does disappear, however, as soon as I navigate away from the Trash folder. Just wondering why two similar folders act differently when emptied; seems Trash doesn't have the same smarts as Junk.