How to create and use multiple profiles using the Profile Manager of Firefox

What's cool about this is that you can use one profile with all your nice web developer extensions set up and another for quick browsing with no extensions installed.  I find using a few extensions tends to bog Firefox down (even still today) so doing without some when I'm just cruising around killing time is quite nice.

The following was lifted from the mozilla site if memory serves me.

In order to create a new profile, you use the Profile Manager.

To start the Profile Manager in Windows, follow these steps:
  1. Close Firefox completely (select File > Exit from the main menu of Firefox).
  2. Select Start > Run... from the Windows Start menu.
  3. Enter firefox.exe -ProfileManager and press OK.

On Linux or Mac, start Firefox with the -ProfileManager switch, e.g. ./firefox -ProfileManager (this assumes that you're in the firefox directory)

// end lift