How to block images from a specific domain?
Solution 1:
To block images originating from a specific domain, right click on the image & select View Image Info in the Firefox context menu. In the Page Info dialog box that opens, check the Block images from {domain}. Older versions of Firefox had the Block images from {domain} directly in the context menu.
Images can also be shown without using an image tag or by declaring a background image in CSS. You can embed the image data directly into the document with data URIs. In such cases, it may not be possible to block those "images".