https://bugs.kde.org/show_bug.cgi?id=472890
--- Comment #3 from Maik Qualmann <metzping...@gmail.com> --- digiKam needs the file path to Thunderbird to start it via parameter. So you have to manually select the path in digiKam to Thunderbird. This can be prevented by not using the native macOS File dialog. However, the setting is located in the Appearance tab. Maik -- You are receiving this mail because: You are watching all bug changes.