I love the work done by Team Blacked Out. I was trying to find instructions for how to move Facebook to system/app. I tried to search this thread, but search keeps taking me to other subjects that have nothing to do with this. Can someone help me with instructions, or point me in the right direction for where to find it?
Might I ask why you want to convert it to system? Fb is a big power eater so it might be better if you keep it as user.
Options include, as others have said, using Titanium Backup, or any file manager with root (root explorer, file manager, etc) and copy pasting the apk to the system/app folder