Firefox will no longer load maps from http://www.intellicast.com/National/Wind/WINDcast.aspx, all other maps from this site load easily.
I have been looking at this web page (http://www.intellicast.com/National/Wind/WINDcast.aspx) for 2+ years every morning. Now the page loads, but the map doesn't appear. All other maps on this site work fine and the map appears if I use Explorer. I have cleared cookies, recent sites history and the cache, checked the block sites section, nothing helps .
They seem like regular images, not Flash animations. Have you tried the suggestions in this article: Fix problems that cause images to not show.
A standard diagnostic to bypass interference by extensions (and some custom settings) is to try Firefox's Safe Mode.
First, I recommend backing up your Firefox settings in case something goes wrong. See Back up and restore information in Firefox profiles. (You can copy your entire Firefox profile folder somewhere outside of the Mozilla folder.)
Next, restart Firefox in Firefox's Safe Mode (Diagnose Firefox issues using Troubleshoot Mode) using
Help > Restart with Add-ons Disabled
In the dialog, click "Start in Safe Mode."
If the site works correctly, this points to one of your extensions or custom settings as the problem.