This downloads ALL images, I hit the button and out of nowhere 948594854 save dialogs popped up. Basically useless, if you need to download images in batches use a scraper.
We are sorry to hear that it made popups for saving images. You can easily fix that problem by disabling "Always ask you where to save files" and enabling "Save Files to ". Please refer this image https://addons.cdn.mozilla.net/user-media/previews/full/198/198284.png
