If you are a frequent user of Firefox web browser, then and need to save Images of a webpage very frequently then, Save Images addon will help you doing this.
For this, just click this link to download “Save Images” add-on for your Firefox Web Browser, and follow the following steps to Save Images.
Right Click on Webpage, go to Save Images, and click “save images from current tab”, to save images from current tab.
Select the folder, in which you want to save by browsing for it.
Click Ok an you will be done, with saving all cached Images in your specified folder.
Check out the video below to see it in action