[[ This is a beta-like version of a work in progress extension, I wanted to put it out there before releasing the 1.0 version so I could incorporate some feedback right away. ]]
This extension allows you to preview the user rating for every Youtube video in every page by adding a small bar under the details like the one you are used to see for your current video, or a numeric rating instead. This gives you the advantage to know beforehand what the users think before clicking into trash (or Rick Roll).
You can hover the bar to see minimal extra details.
Visualization can be by either bars or numbers (see image).