Greasy Fork is available in English.
Support for over 70 sites! Loads manga chapter into one page in a long strip format, supports switching chapters, minimal script with no dependencies, easy to implement new sites, loads quickly and works on mobile devices through bookmarklet
< Feedback on Manga Loader (unmaintained)
It seems that this was implemented in the NSFW addition to this script, which can be found here.
[Site Request] Dynasty Reader
First off, would just like to say that this extension is a blessing! If it's not too much trouble though, would it be possible to add dynasty-scans.com? Thank you so much!