#pragma section-numbers on <> = Crisp Edges = Gecko's default behavior when zooming is to interpolate pixels. This has a blurring effect on images. It can be turned off by using the `image-rendering` css property with the value `-moz-crisp-edges`. Here is how to set this globally: {{{ register_user_stylesheet(make_css_data_uri( ["* { image-rendering: -moz-crisp-edges; }"])); }}} * More information on the image-rendering property: https://developer.mozilla.org/En/CSS/Image-rendering