Inspired by my laziness and the span of eons it take to manually open Filezilla and connect, I created this workflow to open up Filezilla and automatically connect to a pre-existing site that matches your input using the credentials and information that you entered in Filezilla's Site Manager.
Download:
https://github.com/jeffmagill/alfred-open-in-filezilla/raw/master/Open-in-Filezilla.alfredworkflow
(slightly more) Documentation
https://github.com/jeffmagill/alfred-open-in-filezilla
Source
https://github.com/jeffmagill/alfred-open-in-filezilla/blob/master/src/open-filezilla.sh