The Pinterest pop-ups (the save button and zoom button) that come up when you hover over a picture often block the "X" button to close out of something. For instance, if a site is running a sale, it might have a pop-up. I can't close out of it because the Pinterest add-on brings up these two buttons in the top of each corner of the image.

Works fine. I'd recommend you right click on the icon, select "manage extension" and then the "options" tab, and check the box that says "hide hovering buttons". They were constantly getting in the way of interface elements I was trying to click.

simples e prático.

Haven't tried it yet