Change font, size, width, background... of a work + blacklist: hide works that contain certains tags, have too many fandoms/relations/chapters/words and other options + fullscreen reading mode + bookmarks: save the position you stopped reading a fic + number of words for each chapter and estimated reading time
< Feedback on AO3: Fic's Style, Blacklist, Bookmarks
return /\/works\/\d+(\/chapters\/\d+)?(?!.*navigate)/.test(window.location.pathname);
with return false;