In english All of a sudden, since monday 20 january thunderbird has stopped working. I have made no update that I know of. When I launch the app the screens opens, and there are two tabs in "loading" - the cursor starts spinning and never stops, and I can use nothing in the app except force the exit. I have sent the "reports" but to no end. I have tried the most obvious - downloading and installing the new version, no change Going back to a previous version - did not even open so I came back. Checking the permissions running SOS on the disk tried to close bitdefender opened in "safety" mode but nothing chanhges at all. I have exhausted my possibilities THANKS for the suggestions Elena