Uses the kudos/hits ratio, number of chapters, and statistical evaluation to score and sort AO3 works.
< Feedback on AO3: Quality score (Adjusted Kudos/Hits ratio)
Tentatively the issue fixed itself? If the script is enabled sometimes you just need to reload the page but the filter button still works.
Script works! However, like many extensions, not on mobile (iOS, Safari). The thing that always breaks is that the Filter button does not work while it is enabled. You can disable the script to get to a queried results page and then enable it and reload as a workaround.