Easy way to download display image

If u have found a picture and u like to download , right click ,then save ........bla bla.... boring.

Here is a easy way to download the display image
(note: it doesn't download from thumbnail image).
First u must use firefox browserSecondly u must install Image toolbar add-onAdd-on link here https://addons.mozilla.org/en-US/firefox/addon/243install and restart firefox, thats all.
Now u move the mouse over the image. u found the save button, just click, done. (image saved in specified folder)