Firefox delay on Macintosh OSX 10.6.6

[Joshas]

That's normal, Firefox is set to display page wile it is loading, while other browsers (e.g. Chrome) waits for at least css and javascripts to be loaded before rendering webpage. You can see the similar behavior with CSS3 fonts. I'm not using Firefox frequently, only to test websites before launch, so I don't know if there's a setting to increase rendering delay.