Recently I was developing a new site for a client that had exceptionally high processor usage for every page load. Now I have other Drupal sites on this server that use a similar module setup but use a lot less processor. My interest was piqued.
flash
Firefox 2.x + Mac SWFObject Workaround (White Screen Fix)
I've been using FF3 for a while now so I didn't notice this issue but as soon as I loaded FF2 it was obvious. Firefox has issues when you dynamicly load flash through SWF object on a Mac. In FF2 with a Mac all you'll see is a white box that requires you to click on it... then everything will look correct. If you don't want your users to have to click a flash object just to have the page look the way you intended then try the code below.
To fix it you just need to force a quick little behind the scenes redraw in javascript: