Images can be extracted and batch downloaded from most websites. Especially for websites the right click fails or image can not save. Extra features: zip download / auto-enlarge image. See the script description at info page (suitable for chrome/firefox+tampermonkey)
< Opiniones de Image Downloader
http://pic.netbian.com/作者你好，可以让图片的名字为网页图片自带的吗而不是一串数字