If images are missing then check that you do not block images from some domains. *you can tap the Alt key or press the F10 key to show the hidden Menu Bar temporarily Check the permissions for the domain in the currently selected tab in "Tools -> Page Info -> Permissions". You can check the Web Console (Tools -> Web Developer) for messages about blocked content and about the presence of mixed or unsafe content. *https://developer.mozilla.org/en/Tools/Web_Console 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 You can check these preferences on the <b>about:config</b> page and make sure they have the default value. *permissions.default.image (1) *network.http.sendRefererHeader (2) <hr> There is Tracking Protection that can block (wanted) content, so check the location/address bar for special icons. *https://support.mozilla.org/en-US/kb/tracking-protection-firefox If you use extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) that can block (wanted) content (Adblock Plus, NoScript, Ghostery, Privacy Badger, uBlock Origin) always make sure such extensions do not block (wanted) content. *make sure your extensions and filters are updated to the latest version There is Tracking Protection that can block (wanted) content, so check the location/address bar for special icons. *https://support.mozilla.org/en-US/kb/tracking-protection-firefox Start Firefox in <u>Safe Mode</u> to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem. *https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems See also: *http://kb.mozillazine.org/Images_or_animations_do_not_load *http://kb.mozillazine.org/Websites_look_wrong