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
Script not working in FanFox
As title says. I've tested it on various other sites that the script applies to and it works just fine, but on fanfox.net although the button at the bottom right does show up, nothing goes through. Any ideas?