I checked the page. I could not find your white square or any picture.

Hello,

In order to better assist you with your issue please provide us with a screenshot. If you need help to create a screenshot, please see How do I create a screenshot of my problem?

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Thank you!

Many site issues can be caused by corrupt cookies or cache.

• Clear the Cache and

• Remove Cookies
  Warning ! ! This will log you out of sites you're logged in to.

Type about:preferences<Enter> in the address bar.

• Cookies; Select Privacy. Under History, select Firefox will Use Custom Settings. Press the button on the right side called Show Cookies. Use the search bar to look for the site. Note; There may be more than one entry. Remove All of them.
• Cache; Select Advanced > Network. Across from Cached Web Content, Press Clear Now.

If there is still a problem, Start Firefox in Safe Mode {web link} While you are in safe mode;

Type about:preferences#advanced<Enter> in the address bar.

Under Advanced, Select General. Look for and turn off Use Hardware Acceleration.

Poke around safe web sites. Are there any problems?

Then restart.

I see these images from instagram: https://instagramstatic-a.akamaihd.net/bluebar/c0d52a5/images/alpha/000_40.png https://instagramstatic-a.akamaihd.net/bluebar/c0d52a5/images/embed/embed-assets.png https://instagramstatic-a.akamaihd.net/bluebar/c0d52a5/images/ico/apple-touch-icon-114x114-precomposed.png https://instagramstatic-a.akamaihd.net/bluebar/c0d52a5/images/ico/apple-touch-icon-144x144-precomposed.png https://instagramstatic-a.akamaihd.net/bluebar/c0d52a5/images/ico/apple-touch-icon-72x72-precomposed.png https://instagramstatic-a.akamaihd.net/bluebar/c0d52a5/images/ico/apple-touch-icon-precomposed.png https://instagramstatic-a.akamaihd.net/bluebar/c0d52a5/images/ico/favicon.ico https://instagramstatic-a.akamaihd.net/bluebar/c0d52a5/images/ico/favicon.svg

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 link and use the cursor Down key to scroll through the list.
• If an image in the list is grayed and "Block Images from..." has a checkmark then remove this checkmark to unblock images from this domain.

Make sure that you do not block (third-party) images, the permissions.default.image pref on the about:config page should be 1.

There are extensions like Adblock Plus (Firefox menu button/Tools > Add-ons > Extensions) and Anti-Virus software that can block images and other 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

Thank you everyone. I have done most of that, except for trying Safe Mode. I will do so and report back. I will also upload a screenshot, but won't have a chance to get to it until tomorrow. For the record, I wouldn't have expected anyone not having the problem to experience it, but wanted to include a link as an example of the kind of page that I'm seeing affected.

No change in safe mode, and here's the screenshot.

OK, I've checked it and I'm not seeing those images as well. The images are loaded from the server in an iframe via a script, but in Firefox the height of the iframe isn't calculated correctly and stays at the initial value of 0 (zero).

• http://platform.instagram.com/en_US/embeds.js

This makes the image not showing. There are two iframes with id id="instagram-embed-0" and id id="instagram-embed-1" that both show a height=0 If I use the Inspector (right-click: Inspect Element) to set the height to 763 by editing the height value then the images show up.