Greasy Fork is available in English.
Images can be extracted and batch downloaded from most websites. Especially for websites the right click fails or image can not save. Extra features: zip download / auto-enlarge image. See the script description at info page (suitable for chrome/firefox+tampermonkey)
有时候 图片会直接打开在新标签页而不是下载到浏览器下载目录位置