The following settings will allow Sandboxie to access your Firefox profile folder, so that items such as bookmarks, passwords, history, etc. aren’t lost each time a new Sandbox is created. In fact, these settings will delete the Sandbox each time Firefox is closed and create a new one when opened.

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http://www.howtogeek.com/howto/internet/firefox/update-portable-firefox-the-easy-way/

Firefox pages runs faster by allowing multiple connections so it can download more than one file at a time. It’s only useful for broadband users, so if you’re still on dial-up you can just skip this one for now.

Here’s something for broadband people that will really speed Firefox up:

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.

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.

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!