Greasy Fork is available in English.
Shows Delicious info for the target page in a tooltip when you hover over a link.
This script used to display a card when you hovered a link showing the number of times that page was bookmarked on Delicious, and the tags that people used to categorise it.
There was also a mode which could annotate every link on the page with a Delicious score (popularity).
Sadly the Delicious API has changed, and THIS SCRIPT NO LONGER WORKS.