Stephane Deschamps

a11y.css provides warnings about possible risks and mistakes that exist in HTML code through a style sheet. This extension also provides several accessibility-related utilities. see https://github.com/ffoodd/a11y.css/tree/webextension for details

This maximum image size Webextension deals with smaller screens (smaller than your average web designer, anyway) by resizing images so that they fit in your viewport.