I would like to active the console screen off as over before I add it in /etc/rc.conf
so in pfsense where is it I can modify, cause in /etc/ folder is alot of rc.xxxxx but no rc.conf.
We don't use rc.conf on pfSense. We also don't include the screen saver kernel modules in the builds.
You should be able to copy the kernel module off another box and load it from loader.conf though.