Spent a few hours debugging my Flash movie today. I spent most of my time tweaking file paths and loading hierarchy, all to no avail. I finally came to the conclusion that the only thing that would prevent it from loading in Firefox had to be the Javascript. Sure enough, I found my solution posted at the Google code group for the SWFObject.
If the Flash movie is nested in HTML, then all containers for the nested element have to have a height of 100% otherwise Firefox will error and not load the Flash movie.
you can find the solution here: http://code.google.com/p/swfobject/wiki/faq
It was really frustrating and took a long time for me to realize what was happening. Thank you to the SWFObject wiki for being so well documented.
