Modified/Forked from "Ellililunch AO3 Bookmark Maker" (https://greasyfork.org/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.
I absolutely adore this script. I just went through my bookmarks the other day and updated them all with this script. Now I’ll always know the identity of a deleted fic. Thank you!