Here’s the scenario:
You’ve created an SWF file, then inserted it into a page using Dreamweaver with the wmode = transparent parameter, but found that when testing it in Firefox on the Mac the background is still there! You check your code and it looks fine:
<param name=”wmode” value=”transparent” />
The answer should be fairly simple – don’t forget that code is added for IE and non-IE browsers so make sure that the mode is set inside BOTH object tags; if you use the parameters option in the Properties Inspector, then this should be set automatically but it’s always worth checking!