Shows all pages at once. Single/Multi page spread.Example sites: All FoOl(Slide/Reader), MangaFox, MangaReader/MangaPanda, MangaStream, MangaInn, AnyManga, AnimeA, MangaHere, MangaShare, Batoto, MangaDevil, MangaCow, MangaChapter, 7manga, MangaPirate.net, Madokami , SpinyBack, MyManga , KawaiiScans, EGScans, All SenManga,LoneManga ,ReadManga,MangaTraders,MangaCat,KissManga, MangaJoy,MangaBee/OneManga.me, KukuDM, Japscan, Pecintakomik, Sh-Arab, some Portuguese sites. Dl addon for 18+ sites.
Manga OnlineViewer Fluid Mode + is Dead
I couldn't get the viewer to work on most sites, and I had to manually add URLs in order to get it to work for the ones that it still does. The script was last updated in 2015, so I think it's safe to assume that this script is dead.