I can confirm this bug as well. As a workaround, if you right click the message and choose open message it seems to work. Bu then I disabled the calendar add-on(Lightning) and it seemed to solve the problem.
-- Thunderbird crashed at clicking email subject https://bugs.launchpad.net/bugs/179011 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
