Hi, Sometimes ago I asked for a feature to allow firefox to download images in a saner way. It got rejected with good reason. I have a workaround that might help add new features, help with duplicate images and fix my problem with firefox being a dumb browser.
If you use a canvas to display images you can allow for downloading its content directly, solving my initial problem, you can also add/move features like rotate, HSL manipulation, cropping, ... to the download page later.