Dear Mozilla, My 27" iMac crashed suddenly on Wednesday last week (when I wasn't actually using it) and would not boot up. A message referred me to Apple and I made an appointment in Glasgow to take my Mac for the repair. I plugged my Mac in before I left - and it recovered itself! However all my Thunderbird emails, files and settings have totally disappeared! Apparently a Thunderbird update is responsible. I have spent hours on the phone trying to get help. I have spent hours with CHATDGP talking me through stuff. The data seems to be on my machine but whatever I do I can't get Thunderbird to work. I am at my wits end. I have all my work files in Thunderbird and have no access to anything. This is the second time recently that my Thunderbird files have vanished. I had to pay an expert to come to my house and restore the first time, but he is very ill at the moment and unable to leave home. Please help me. I would be very grateful to have my Thunderbird back and working correctly. I am on macOS Monterey, version 12.7.6 (21h1320). kind regards Helen 07836 707504 UK