HttpFox: The FireFox add-on you can't live without

Unlike Firebug and TamperData HttpFox does not change behavior of the browser cache, and correctly reports what is being served from cache and what goes on the wire. Unlike TD and LiveHTTPHeaders it has a convenient user interface for examining HTTP conversation post-factum, including timing, cache info, etc. The interface part follows from it being a direct, if not yet complete clone of HttpWatch, an excellent commercial product for IE. Unlike tcpdump/tcpflow/wireshark it allows convenient capture of SSL traffic, and is quick to use.

In summary, HttpFox is the a great tool for HTTP optimization under Firefox.

-s0 does what you're trying to do with -s10000

Any chance Tamper Data catches an outbound request early enough you can actually rewrite the target URL, including target host?

Because I've wanted to make an extension that does that for a while, but haven't found in Mozilla docs the right hooks, and would love a working model.

Now why would someone want to do that :P