title: imacros changing focus to second firefox window
body: <p>We are trying to create a script that can click on a button that appears in a second window (not a tab in the same window) but do not seem to be able to get iMacros to change its focus to a new window.
  Can iMacros cross browser windows in a single script?
  The webpage flow is:
  - browser window directed to a URL
  - Click a button in that page
  - a new window is opened
  - click a button in that window</p>