This extension hides images with a middle click.
Does what it says. NOTICE: This may not be for everyone since it will hide all images when the middle mouse button is clicked over an image, which means images that are also links will just be hidden and not open in a new tab like normal with a middle click. If this is functionality you use, DO NOT install this. This is in addition to the "Image Hide" extension. They work separately and distinctly. Update - 8/12/2018 - Now supports more images.