As the one year anniversary is approaching and this bug still exists, I want to redirect potential visitors of this page to this askubuntu answer where I found valuable information: https://askubuntu.com/a/20161/548635
To summarize, a workaround is to change thunderbirds TMP variable to something the snap version okular can access. Creating a custom .sh file with the following content should help: #!/bin/sh TMP=/home/or/media/folder nohup thunderbird & -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1745999 Title: Okular snap package cannot access files outside home directory To manage notifications about this bug go to: https://bugs.launchpad.net/kdegraphics/+bug/1745999/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
