View HTTP headers

[Curiosity]

Is there any application for Intel Mac which will allow me to view HTTP headers being exchanged between my browser and a web server?

 

[Natobasso]

It's a long shot, but could this be a possibility?
https://addons.mozilla.org/firefox/967/

It's a header editor, so I assume you can first view the headers you want to edit.

 

[Curiosity]

Thanks for trying, but that extension does not show you the headers, just allows you to modify the outgoing ones.

 

[macworks]

Do you want to see incoming headers only? You could use PHP for that.

 

[Curiosity]

I want to see both incoming and outgoing headers. It helps to pinpoint the source of a problem sometimes.