Topic awaiting preservation: FireFox Header Modification Plugin

I am working on designing some web services and would like to be able to use firefox to do some basic testing.

I would like to be able to change the headers that I am sending to the webservice, at this point I would like to change the accept-type header so that it is text/xml as opposed to text/html.

Is there a plugin out there that would allow for custom headers to be created and sent? Or is there another tool out there that would be better suited for the task?

Dan @ Code Town

You can change the Accept-Type header by typing "about:config" in the address bar. Search for the value "network.http.accept.default". Some other headers can also be changed in this interface.
If you want more control, the Live HTTP Headers plugin provides a way to send whatever header you want.

Awesome. Thanks for the info.

Dan @ Code Town

The replay feature was just what I needed!

Dan @ Code Town

Glad you already got help :-)
I ususally use a simple, hacked, Python proxy for such testing.