Since a few days ago Thunderbird is also updated to 68.7 on Ubuntu 16.04 LTS.
I first encountered the bug with the black screen again. After rebooting it works again now.
I also entered the apparmor-commands from above, but presumably they were not necessary.
Since a few days ago Thunderbird is also updated to 68.7 on Ubuntu 16.04 LTS.
I first encountered the bug with the black screen again. After rebooting it works again now.
I also entered the apparmor-commands from above, but presumably they were not necessary.