I binge on Imgur sometimes (it's a site where people post images) and I go through the same posts since I revisit it multiple times on binge days. I wanted a way to avoid having to skip all the images that I've already seen.
What it does
The Seen It extension saves the images you've seen on Imgur. If you go to a post that you've already seen, Seen It will automatically skip to the next image until you get to something you haven't seen yet. There are also options to clear your image history, pause skipping, and pause storing new images if you ever need those choices.