Map of Sydney opens perfectly for me with the same Win7 Fx5 that you have. Do you have problems with any other sites?

I've seen a similar problem an hour or two ago. Someone may come up with a specific fix but this is the standard diagnostic approach -

I can't see any oddities in your plug-ins. It never hurts to clear any relevant cookies and your cache.

You could see how it goes in Safe Mode - Hold Shift key down as you double click on the Firefox icon>ignore the page that opens and continue. If the website opens correctly with the map you probably have a problem with extensions or themes and you should work through this -

https://support.mozilla.com/en-US/kb/Troubleshooting%20extensions%20and%20themes

A lot of things have been updated as well as Firefox and you could have a culprit or conflict. Next, if there is no improvement you could try disabling third party toolbars, and you should report back at this stage or if there has been early success.

Hi, I tried all of the above but it still doesn't work. The site opens, but the map doesn't load