Code:
somebody@darkstar:~$ grep -l libsmime3\.so /var/adm/packages/*
/var/adm/packages/openoffice-1.9.79-i386-1
somebody@darkstar:~$
Code:
somebody@darkstar:~$ slackpkg search "libsmime3.so"
The list below shows all packages with the selected pattern.
[uninstalled] - mozilla-1.7.6-i486-1
[uninstalled] - mozilla-firefox-1.0.2-i686-1
[uninstalled] - mozilla-thunderbird-1.0.2-i686-1
somebody@darkstar:~$
I don't use firefox but I'd look if another installed package doesn't contain this library too.
But it's possible in mozilla(-firefox) package is this library broken, i.e. badly stripped.