good except that it does not automatically add extension to images that do not have it in file name, EDIT: Sorry, but it does! Take look at other extensions that manipulate file names like Image Max URL, Download All Images, Save Page WE, SingleFile...
Thanks for the simple and honest summary. For fairness' sake, just know that firefox specifically does not even implement the download renaming API. Firefox addons could not add a missing extension even if the developer really wanted to.
Edit/reply: not in the way you think. Those addons determine their own filename from a bunch of guesswork. I consider that an anti-feature and want to leave the initial naming to the browser.
