Flex Application not seen in Firefox or Chrome

I have recently built my application and it can be seen in IE, however it is not being seen in Firefox or Chrome. Using Firebug, I get two errors:

1. SyntaxError: illegal character
swfobject.embedSWF(

2. ReferenceError: swfobject not defined
swfobject.embedSWF(

I have tried moving swfobject.js from another application that is working, however that does not solve the issue. Is this a browser issue?