Roadblock for Mac
Block and Hide Visually

Roadblock makes it easy to block and hide content visually. In visual mode, Roadblock highlights webpage elements when you hover on them and automatically creates custom rules to block or hide the elements you select.

You can select one or more elements by clicking on them. To deselect, click on the selected element. When you are finished selecting the elements you want to block or hide, click on the extensions's toolbar icon and select "Done". To cancel, select "Cancel".