Greasy Fork is available in English.
Adds shortcuts for last chapter and a floaty review box, sorts bookmarks by kudos (slow) and allows filter by complete only, download link to listing
< Feedback on AO3 Review + Last Chapter Shortcut + Kudos-sortable Bookmarks
Love this script!
I use it every day. It might need a small edit for the download button, though, now that AO3 has changed their downloads and added another file option, everything is out by 1 file type, I think. I had to change the file option to html to get it to make the shortcut for pdfs to appear.