new window creation in watir
browser = Watir::Browser.new

`user_is_bewildered': Error in the default values: :browser's value must be one of 'ie', 'firefox', or 'safari', and '' doesn't look right. (StandardError)

require 'rubygems'
require 'watir'

Watir::Browser.default = "firefox"
browser = Watir::Browser.new

# Whatever you want to do in watir

browser = Watir::Browser.new :ff

c:> gem install watir