Suddenly last night Thunderbird had copied several folders within one of my accounts. I discovered that the copy versions folders all were empty (while the original folders had the saved post. So I decided to move the empty folders into trashcan and then empty it. However I discovered after a reopening of Thunderbird that the original folders also were deleted, so I missed all my post within the many folders. Now I like to ask : Is there a way to recover such deleted folders, since as far as I know my C-drive has a backup while the program is functioning on my D-drive . So is there a way to recover deleted TB files from my d-drive by doing something in the TB program om my C-drive.  ??