i switched something while perusing an ebay listing (right clicked?) and now it no longer displays the seller's images from their 3rd-party photo host (still works in IE). How do i reverse this?

Sellers can use eBay's image system to display their items, or use a 3rd-party that allows more and large images to be displayed directly within the description of the item. With this problem, the resulting listings are also completely messed up because of the change in layout (no pics).

i have checked many other listings and they show on IE but not FF. It occurred in mid-swing so i know i accidentally switched something, but am not sure how to get it back.