I've been using TBird for many, many years, very happily. A short while ago, after a recent Thunderbird update, all of my account info disappeared, as well as my local folders. I was able to rebuild my accounts fairly easily, but had to purchase a recovery tool to find my lost emails that had been stored in local folders. I've started sorting them and creating folders inside my mailbox (instead of local folders) to organize emails. Thunderbird is showing 3 or 4 "sets" of empty local folders now (see image,) however I don't find these when I click on the Local Folders option in the settings. How do I purge these empty ghost local folders from my Thunderbird profile? Thanks for any guidance.