Which of the following sentences is more correct or preferable?
You have to first install the PHP filter module.
You have to install the PHP filter module before.
The second sentence seems truncated, to me, as I would expect a sentence similar to "You have to install the PHP filter module before enabling the module you downloaded."
The reason I am asking is that in Italian first (as adverb) and before are both translated with prima. The correct Italian sentence would be the equivalent of the first one.