After upgrading to Firefox 6 if a web page has multiple images (large or small) only a portion of them load. If I hit reload about four to five time I will eventually get all of the images as with each reload more images show up. Example would be on the backcountry.com site looking at shoes about 1/4 of the shoes don't show. I tried disabling all add-ons and it didn't help. I uninstalled and reinstalled Firefox 5 and there is no problem.