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
< Feedback on Manga Loader NSFW (unmaintained)
nsfw script on Hitomi.la not working
click load manga and there is nothing happen, and the load manga button still there. click its again and still nothing happen.