I have a similar problem. I can no longer open attachments with umlauts. This is a recent problem (I could do it in the past). I have English (US) as locale but I changed my paper size to A4 for printing in a settings file (because I wanted A4 as standard paper).
-- Mozilla Thunderbird has a problem with umlauts (special character) in your full name (UTF-8 related problem) https://bugs.launchpad.net/bugs/79584 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs