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)
I'm going to add that this isn't a simple domain replace. It seems the support for pururin is broken. I noticed that someone else tried that already.
new pururin doman: pururin.io
Could you please add this is