Firefox slow?

I usually don't do technical blogs, but I was trying to figure out why my Firefox browser's been sluggish at work and at home, and I found a 'fix' while googling...

1. Type "about:config" into the address bar and hit enter. Scroll down and look for the following entries:
2. Alter the entries as follows:
3. Set "network.http.pipelining" to "true"
   Set "network.http.proxy.pipelining" to "true"
4. Set "network.http.pipelining.maxrequests" to some number like 30. This means it will make 30 requests at once.
5. 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

I've tried the fix and it seem to improve a little. Any Firefox users care to give it a try and let me know the outcome?