I found that 'Trash' file was removed in my profile folder, even though 'Trash.msf' stil existed.
After "touch Trash ; chmod 777 Trash" this issue has been totaly resolved. I have no idea whether this issue is environment specific or not, and why my Trash file was removed in upgrade time. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1647721 Title: unavailable to delete any message To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1647721/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs