If you want to download photos of your friends albums from Facebook you have to do it one by one, if the album is large then its pain to download one after another. Facebook Photo Album Downloader is a Firefox addon that allows to download photos of entire album from Facebook.

Install the addon FacePAD, now go to your friends photos page and right click any album you want to download, select “Download Album with FacePAD” from context menu, a Javascript popup will open telling you to wait a moment while it initiates the download process. Click ok to download the photos from the album. If there are more than 20 photos then more than one javascript popup will open, the default download for each popup is 20 photos.

The photos are downloaded to the default Firefox download directory.