Delete it. I deleted it so you can too!
Facebook has made a number of deals with Samsung and other Android smartphone makers to make it impossible for people to delete the app. The deals, first reported by Bloomberg, mean the Facebook app comes pre-installed onto devices and can only be disabled and not permanently removed.
I don`t have it on my Android, so I must`ve deleted it years ago.
The forbidden knowledge of how I did it has been lost however and thus someone else must rise to the occasion and discover it again.
You can't delete only disable
i am pretty sure it is possible but only with phone root... or maybe im wrong
tho if u want to root then you need to be aware of consequences
If your phone doesn't have warrancy you can just root it and then delete unwanted aplications. I had to do it on my old Xperia J to make it functional.
you need to root the device. I have done it too just to remove these useless apps . It is a very long process if you don't know anything about it. also please be aware of consequences of root
Its installed as a system app so you cant uninstall it unless you root ur phone.