Firefox 3.x used to have an option to block pesky images that were not part of the context of page that you were viewing - like image ads. You just had to right click on the image, & select "Block images from {domain serving the image}" to never see any images from that domain again. That context menu option is missing from Firefox 4 & above.
It turns out that it is still there but there are some additional steps to reach it. Right click on the image on the page you are viewing in Firefox & from the context menu, you have to select View Image Info & click on the checkbox "Block images from {site name}".
Thanks RalphB
Also see:
HOW TO block IFRAME based ads
It turns out that it is still there but there are some additional steps to reach it. Right click on the image on the page you are viewing in Firefox & from the context menu, you have to select View Image Info & click on the checkbox "Block images from {site name}".
Thanks RalphB
Also see:
HOW TO block IFRAME based ads