As we know, we can get the source code of a web page with Firefox. I'd want to get the pictures in the page via the source code. Is there a way for it? Or any addons of Firefox to achieve it? Thanks a lot.
In Firefox, without any add-ons: menu Tools » Page Info (Command-I on a Mac), tabsheet Media. This also gives you a Save As button for media that cannot be right-clicked on the site itself.
If for some reason some tabsheets are not showing at all, then you might need to Refresh Firefox. (In my case this once happened as it was having problems signing in to Sync, showing things like NS_ERROR_FAILURE: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIPK11Token.initPassword] in Tools » Web Developer » Browser Console. A refresh fixed that.)