Flash of unstyled content (FOUC) in Firefox only? Is FF slow renderer?

Question

I\'m not seeing this issue in any other browser that I\'ve tested - IE, Chrome, Opera - but whenever I load a page from the server, I\'m seeing a flash of unstyled content befor

Answer 1

For what it's worth, I had this same problem and found that it was being caused by having poorly formatted ... tags.

To be precise, in my code I accidentally closed the HTML tag too early, like this:

The code provided by the original poster is missing the opening so I suspect that's probably whats happening there.