works! Rated 3 out of 5 stars
the good thing:
this extension works as expected and -not like some other guys wrote here- on mostly all images i tried the last few months (i'm not a mass downloader...).
the bad thing:
the extension places itself into the right-click menu, where it offers two menu-entries.
*unfortunately* they both use the same hotkey, so its not convenient to choose one of them via the keyboard, because one *has* to press enter to apply. (for me, thats bad, because the shortcuts are 'Y' and i use my mouse on the right side, which means, i have to move my hand from the mouse to the enter key to the keyboard and then back again.
that is very inconvenient, so i gave 5 stars for the greatly working extension and minus two for the hassle using it.
why not just use two different shortcuts?
(blame me, if firefox itself assign those shortcuts and not the extension itself....)