Pessoal, eu pesquisando na internet descobri uma série de "tweaks" pro Firefox, que melhora muito o carregamento das páginas, como testei e aqui deu diferença quero compartilhar com vocês...
Relembrando que eu indico utilizar junto o Plugin Fasterfox, com a opção turbo marcada, testem e postem seus resultados...
Depois do que testei aqui ADEUS I.E.
Segue abaixo o conteúdo
1. Type "about:config" into the address bar and hit return. Scroll down and look for the following entries:
network.http.pipelining
network.http.proxy.pipelining
network.http.pipelining.maxrequests
Normally the browser will make one request to a web page at a time. When you enable pipelining it will make several at once, which really speeds up page loading.
2. Alter the entries as follows:
Set "network.http.pipelining" to "true"
Set "network.http.proxy.pipelining" to "true"
Set "network.http.pipelining.maxrequests" to some number like 30. This means it will make 30 requests at once.
3. Lastly right-click anywhere and select New-> Integer. Name it "nglayout.initialpaint.delay" and set its value to "0". This value is the amount of time the browser waits before it acts on information it receives.
If you're using a broadband connection you'll load pages MUCH faster now!"
FONTE:
http://www.masternewmedia.org/news/2005/02/04/firefox_speed_boost_tweak_tips.htm