Is there a way to use Firefox and Firebug but pretend it is iPhone's Safari by faking the User Agent string? I want to use Firefox to examine the Amazon or Gmail sites and see how the page is laid out for iPhone... just for fun and for experiment. Is there a way? thanks?
You can fake the user agent string using the instructions great_llama provided, but remember that Firefox is not Safari and it probably won't lay out the page identically. If you're on a Windows or OS X machine you can use Safari to see how it will look with a higher degree of accuracy.