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)
Thank you to the creator of this script. It worked perfectly on 32-bit Firefox 91.7.0esr running on Linux antiX distribution. It made downloading multiple images very efficient.