same, no images are displaying on firefox from external links. as we host all of our images on photobucket for eBay this is a big problem.

Clearing out the cache on that machine seemed to fix the problem. I didn't need to do the more drastic things on the solutions list.

i managed to fix the photobucket error by going into tools > options > Content. and under the load images automatically > exceptions, photobucket was on the list to be blocked for some reason. must have been a bug as i definitely did not add it to this list. cheers

It is possible that you accidentally clicked the 'Block Images' item in the right click context menu while trying to save an image.

nope as this happened on both of the work computers on the same day