There are several add-ons for Firefox that will change the way you can interact with images and galleries, and joining that clan of extensions is OutWit Images.  It is a simple, straight to the point image browser for the browser.  It does all the catching, saving and auto-browsing for you.

The thing that makes OutWit Images different than other image browsers, is it allows user to save images right to the hard drive and browse from there.  From within Firefox, you [...]