Sleazy Fork is available in English.
Loads manga chapter into one page in a long strip format, supports switching chapters and works for a variety of sites, minimal script with no dependencies, easy to implement new sites, loads quickly and works on mobile devices through bookmarklet
< Обсуждения Manga Loader NSFW (unmaintained)
Added in latest version, sorry for the wait.
https://sleazyfork.org/en/scripts/12657-manga-loader-nsfw/diff?v1=161687&v2=158596
Site Request
Could you add http://hentaifox.com.