searching extension to rate / star websites
I'm looking for an extension that I presume exists, but I'm not able to find it: I want to rate websites in the way photo apps allow you to rate your photos, i.e. assign a number of stars to them.
Like https://mozilla.org ★★★★☆
One use case: I'm comparing products where I don't necessarily find something so good that I can come to conclusion now, so I need a way to save it.
Do you know such an extension or have good ideas how to search it?