I don't think I've seen a green icon. Could you provide a screenshot of it? It may cast some light on the provenance of your spare Deleted folder.

Mine are generally tiny wastebins with a recycle logo, but it can vary between desktop styles and Thunderbird themes.

You are correct and they are waste bins with a recycle logo but they were so small I couldn't tell what they were. It sounds as if they are what you have so how do I get rid of the waste bin I do not want and which in fact is empty. Any normal Deletes appear to use the waste bin not associated with the Inbox

First please look at your Account Settings > Server Settings and check what it says against 'When I delete a message ... '. I guess you have ticked the option 'Move it to this folder ... ' and the folder that you have specified there is the one where your deleted items currently go. And that's the folder you want to continue to use, right? Next please check if this is an IMAP account. If it is, right click on the account in the list of folders and select 'Subscribe'. A window should open up showing a list of folders on the server, with a tick beside those you are subscribed to. I suspect that the Deleted folder in this list may be subscribed? If so, remove the tick mark, refresh the list to make sure that you are no longer subscribed to that folder, close and restart Thunderbird. Has the folder disappeared? If not, can you delete it now?

Right on target. Thank you. Did exactly what you suggested and it did exactly what you said. Thanks.