Tracking Firefox Server Requests?

Hi,
Does anybody here use the Microsoft Stress Tool when they’re doing work in flash? It keeps track of the server requests your browser is making. I use it when i’m making a flash site connected to a db, so I can check what URLs flash is asking for and so that I can see what it returns.

The problem with this is that it only works with IE, and I just came accross a flash problem that only occurss in Firefox but not in IE. I can guess as to what the problem is, but I can’t tell what firefox is asking from the server. If I knew then I’d be able to track down the bug faster. Does anybody know of a tool that does this with FF? I’ve been looking on the extensions site but I don’t see anything related.