03.23.07
Easy User.js tweak for speed

First, install the ChromEdit extension. It make it easier to edit user files.
Now, run Firefox, go to Tools > Edit User Files, click user.js tab.
Insert the following texts based on your PC speed and internet connection.Here’s a little key:
Fast Computer is greater than 1.5Ghz CPU and atleast 512MB RAM
Fast Connection is DSL or cable or better.These are the settings that seem to be common to all configuration files regardless of connection speed or computer speed with a couple of additions – plugin paths can be found with about:plugins and the bookmark menu delay is turned off.