Upgrading is good but there are some who just don’t updgade as often as others, so I have upgraded to Firefox 3 but wanted to keep Firefox 2 at hand for testing websites I develop, so here is how to install multiple copies of Firefox on Windows.

Step 1

Download Firefox

Step 2

Go to start run and type:

firefox.exe -ProfileManager

This will open Profile Manager

Step 3

Inside Profile Manager create a new profile and store it in a new location

Step 4

Now install the version of Firefox you want to use alongside the previously installed one, also remember to select a new location for the new one you are installing.