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First, open your browser and enter "about:config" as the URL. This will access Firefox's
internal settings. Click through the "please be careful" warning, then simply change the following:

Enable HTTP Pipelining

I did some research as to why this isn't enabled by default and really couldn't find any good reasons.
Apache Traffic Server supports this, and I got a roughly 100% speed boost by enabling it.
I also dropped the folks at Mozilla a line and suggested they support this.

network.http.pipelining user_set boolean true
network.http.pipelining.aggressive user_set boolean false
network.http.pipelining.ssl user_set boolean true
network.http.proxy.pipelining user_set boolean true

Increase Connections

As it turns out, this first setting is artifically low on the presumption you'll be using a public proxy
on the Internet and that it's "bad etiquette" to send such a server too many connections.
Being that I'm not going to kick myself off my own proxy server, I went ahead and changed this.

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