WaifuEverywhere 作者: Gregorio P.

Firefox add-on to get waifu images.
Click on the extension icon to open the popup and press "New Waifu" to get an image of an anime girl.
Information about the image can be viewed by pressing the "Info" button.
Info shown: source link, sfw/nsfw, tags, file extension, width, height, byte size, dominant color.