FacePAD is a Facebook Photo Album Downloader will allow you to download your friends’ facebook albums, Events albums, and Group Albums, en masse, with the click of a button. It is a Firefox addon . To download an album from Events Album or Groups Album, the user must right-click on the See All link on the main page of the group or event of interest.
After installing the add-on to Firefox, downloading photo albums from Facebook by going to a page that shows you a list of photo albums.
Right-click the photo albums and you’ll get see new option Download Album with FacePAD, this allows you to download the selected Facebook Photo Albums to your computer.
Click here to downliad FacePAD
Checkout this http://apps.facebook.com/saveimages/ no software installation is required