MarsSeed [1] filed a deletion request for lib32-libfilezilla [2]: This 32-bit AUR package has not been updated for nearly 2.5 years. Nothing in AUR depends on it anymore. Therefore it's safe to conclude it's not needed and can be deleted.
[1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/lib32-libfilezilla/
