[FIX] Evince is unable to open external link
When trying to open a external link in evince (document viewer) I got this message: Unable to open external link Failed to execute child process "exo-open" (Permission denied) It seems that AppArmor is preventing evince from executing exo-open, which would handle the link. Fix Open a terminal window and run (two lines): sudo ln -s /etc/apparmor.d/usr.bin.evince /etc/apparmor.d/disable/usr.bin.evince && sudo service apparmor restart References Evince: "Failed to execute child process" at Ubuntu Forums