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
< Rückmeldungen aufManga Loader (unmaintained)
Seems like a useful feature to me. I added it in v1.5.0. Let me know if this help at all, I've never actually had an issue with images getting stuck loading half way so I wasn't able to test it.
[Feature Request]Manual Reload
Sometimes the images get stuck displaying halfway without changing to the refresh icon, so a new feature would be nice.