See: * http://kb.mozillazine.org/Images_or_animations_do_not_load * You can see the permissions for the domain in the current tab in Tools > Page Info > Permissions * You can check the exceptions in Tools > Options > Content: Load Images > Exceptions * You can check the Tools > Page Info > Media tab for blocked images (scroll through all the images) There are also extensions (Tools > Add-ons > Extensions) that can block images. See: * [[Troubleshooting extensions and themes]]