Hi Rick, [I'm currently investigating a similar issue here (yay, another one ;).]
Can you post the content of these two files (if they exist on your system): ~/.config/mimeapps.list ~/.local/share/applications/mimeapps.list On 12/30/2016 08:46 PM, Rick Lutowski wrote: > You mean mozilla-thunderbird, not Icedove/Thunderbird? (My ~home has a > .mozilla-thunderbird > config directory, but it is inactive; not accessed since 2013.) Not accessed (read) or not written to? Greets jre