Greasy Fork is available in English.
Modified/Forked from "Ellililunch AO3 Bookmark Maker" (http://greasyfork.icu/en/scripts/458631). Script is out-of-the-box setup to automatically add title, author, status, summary, and last read date to the description in an "collapsible" section so as to not clutter the bookmark.
Would it be possible to have the character and/or freeform tags show up along with/instead of the relationship tags? Usually I skip the relationship tags and am more interested in the plot so this would be very useful.