Greasy Fork is available in English.
Gives you the option to load all the subsequent comic pages on a FurAffinity comic page automatically.
FurAffinity has a so-so webcomic navigation that involves scrolling down to the comic description and clicking the "<<< PREV | FIRST | NEXT >>>" links (Assuming the artist put them in the description.
This script detects whether such links are on the page, and if so, creates a button that when clicked will fill up the page with the remaining comics in the series.
So if you're on the second page of a 5 page comic, and click the button under the page, the remaining 3 comic pages will load and appear below the second page, so you can read the rest of the comic just by scrolling.
Wrote it because I was dealing with a rather large comic series, and don't like repeatedly finding the "NEXT >>>" link every single page.