问题
How can I view the page headers sent by the current page I'm viewing in Firebug ?
回答1:
Yes, so long as Firebug is open on the net or console tabs when loading the page.
They will appear in either one of these tabs (though you may need to reload if they were not enabled/open).
来源：https://stackoverflow.com/questions/4156079/viewing-page-headers-in-firebug