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Firefox 42+ has a Tracking Protection feature that is enabled by default in Private Browsing mode. When you are in private browsing mode then Firefox can show a shield icon at the left end of the location/address bar that some content is affected. You can disable this feature in "Options/Preferences > Privacy" or via the about:privatebrowsing page that get when you open a New Private Window. *Options/Preferences > Privacy: "Use Tracking Protection in Private Windows" *https://support.mozilla.org/kb/tracking-protection-firefox *https://support.mozilla.org/kb/control-center-site-privacy-and-security-firefox ---- 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 do not block content. There is security software that can interfere with loading content, so check that as well. 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