https://bugs.kde.org/show_bug.cgi?id=414959
--- Comment #25 from jo...@petri.us --- For me (using the 7..4.0 appimage on pop_os 21.10, a ubuntu 21.10 derivative) the issue is that the appimage sets a some environment variables which make it impossible to sublaunch thunderbird. In particular, LD_LIBRARY_PATH and LD_PRELOAD are being set by the appimage launcher, and they both seem likely to break many installations. I think that digikam probably ought to take a moment when launching the email program to ensure that the environment has been restored to whatever it was when the appimage was launched. As a workaround, I created a ~/bin/digikam-thunderbird-fix/thunderbird file, chmod a+x, with the following contents: #!/bin/bash unset LD_LIBRARY_PATH unset LD_PRELOAD exec thunderbird "$@" (You might have to change the thunderbird command above to point to your thunderbird install if you don't have it in your path.) -- You are receiving this mail because: You are watching all bug changes.