Add a checkbox to Goodreads' book series pages that allows you to hide books that aren't part of the core series/primary works (#0.1, #3.5, etc).
< Goodreads, show only the "primary works" in a series on series pagesについてのフィードバック
Sorry about that! Goodreads rearranged/renamed some of their React stuff. I've just uploaded a fix.
Not working anymore
Sadly, checking the box doesn't actually hide the non-primary works.