umm it seems AppAmor profile for Evince makes it useless for opening PDF directly from Firefox's cache.
Anyway, nothing that "sudo ln -s /etc/apparmor.d/usr.bin.evince /etc/apparmor.d/disable && sudo apparmor_parser -R /etc/apparmor.d/usr.bin.evince" can't solve *LOL*
umm it seems AppAmor profile for Evince makes it useless for opening PDF directly from Firefox's cache.
Anyway, nothing that "sudo ln -s /etc/apparmor. d/usr.bin. evince /etc/apparmor. d/disable && sudo apparmor_parser -R /etc/apparmor. d/usr.bin. evince" can't solve *LOL*