Today (1/09/18) I installed Thunderbird 60 thinking that this would integrate with my previously installed Thunderbird. I then noticed that I now had two Thundebird programs running. Using IObit un-installer I removed the previous version and no! I did not create a restore point. When I opened the new Thunderbird It had me carry out all the preliminaries such as my Email account etc. When I looked for all my Locally stored email Folders they were gone. I searched APPDATA and found the folders but all were marked .SBD and were empty. In a panic I went direct to my email provider to search for my local folders and they were gone from there also. I urgently need the information that is contained in those Folders. How can I recover them