If images are missing then check that you do not block images from some domains. You can tap the Alt key or press F10 to show the Menu Bar Check the permissions for the domain in the currently selected tab in "Tools > Page Info > Permissions" Check "Tools > Page Info > Media" for blocked images *Select the first image and use the cursor Down key to scroll through the list. *If an image in the list is grayed and "<i>Block Images from...</i>" has a checkmark then remove this checkmark to unblock images from this domain. Check <b>permissions.default.image</b> on the <b>about:config</b> page to make sure it is default (1). ---- If you use extensions (3-bar Menu button/Tools > Add-ons > Extensions) that can block content (e.g. Adblock Plus, NoScript, Flash Block, Ghostery) then make sure that such extensions aren't blocking content. See also: *https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes *http://kb.mozillazine.org/Images_or_animations_do_not_load *http://kb.mozillazine.org/Websites_look_wrong ---- You can check the log in the Web Console for error messages and the Network Monitor (Firefox/Tools > Web Developer) to see if content fails to load or is possibly blocked. *https://developer.mozilla.org/Tools/Web_Console *https://developer.mozilla.org/Tools/Network_Monitor Use Ctrl+F5 or Ctrl+Shift+R to reload the page and bypass the cache to generate a fresh log. ----- Boot the computer in Windows Safe mode with network support (press F8 on the boot screen) to see if that has effect. *http://www.bleepingcomputer.com/tutorials/how-to-start-windows-in-safe-mode/ *http://www.7tutorials.com/4-ways-boot-safe-mode-windows-10 See also: *https://support.mozilla.org/kb/troubleshoot-firefox-issues-caused-malware

Well, this: "Check "Tools > Page Info > Media" for blocked images" wasn't the exact issue but it helped me find that avast! AV web shield was on and once I turned it off, all images are displayed again. THANK YOU for indirectly guiding me to a fix!