Now you may wonder: Was not there already an extension of Chrome-thirds who did this? Yes, but the official Facebook is better, showing how others have clicked on the page as you see.
I tried it, and the extension installs in seconds. It works well, making few cases to show all your Facebook friends what you want, wherever you go on the interwebs. It turns and all the buttons and other extension allows you to access its menu Likeatude Chrome right click.
Want to give it a try? It is available in Chrome Web Store.