I tested 5 add-ons I think, and how come it is simpler to go through the whole process with PS? Is it possible to find a working one?

You have to test way more if you want to find any type of add-on on the chrome web store. Or you can ask somewhere, just like you did. And you will get the suggestion you need now. Here’s the link for you https://chromewebstore.google.com/detail/quick-color-picker/mmjhombiehngfpipefodkebphfnblphe

I figured as much already. And thanks for the suggestion, friend. I will try it.