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If you have worked with IE you probably know there is Developer tools which can be access though Tools -> Developer tools. It will show you a window, by clicking on Network you can see something like the picture below: enter image description here

Here you can see ALL HTTP requests (with request and response headers and body). My question is this: Is there anything like this for Firefox?

Note: I'm using Live HTTP headers and it's NOT what I want, because it doesn't show response body at all!!!

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up vote 3 down vote accepted

The most famous (and the best) developing tool for Firefox is Firebug. You can see all the HTTP requests and responses with Firebug, along with many other features.

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Ohh +1 for Firebug I forgot about that one. – Tanner Faulkner Jul 30 '12 at 17:21
it's awkward! I'm using Firebug for two years and didn't notice that:-D Thanks! – undone Jul 30 '12 at 17:32
Firebug is such an essential developing tool. I also recommend using the Chrome Inspector, it's amazing. – amiregelz Jul 30 '12 at 17:37

Try Fiddler. It may not be built in to Firefox, but it should do what you want plus more.

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Yes, it is called Firebug. It also provide a lot of other helpful info.

enter image description here

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Best plug-in is Fire-bug.

Apart from that, HTTP-Fox Or Fidder you can use.

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