Sorry I can confirm that this is a bug. Thanks, Alex.
** Changed in: mozilla-thunderbird (Ubuntu) Status: Needs Info => Confirmed -- Mozilla Thunderbird has a problem with umlauts (special character) in your full name (UTF-8 related problem) https://launchpad.net/bugs/79584 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs