GUI - Make a window always maximized

I am considering using Mac Minis as kiosks at a library. They would simply serve the catalog pages of our library system. I am considering using Firefox instead of Safari and I have almost everything taken care of but one little sticking point.

I have scripted Firefox to load on startup and to re-launch when it is not found. I put Javascript into the web page to make it reopen if closed, but, I cannot figure out how to maximize the window if someone collapses it.

Here is my script, so far:


tell application "Finder"
  repeat
    tell application "System Events"
      if exists process "Firefox" then
        if visible of process "Firefox" is not true then
          set visible of process "Firefox" to true
          set the frontmost of application process "Firefox" to true
        end if
        tell application "Finder"
          set collapsed of window "Firefox" to false
        end tell
      else
         tell application "Firefox"
           launch
         end tell
       end if
      end tell
      delay 5
    end repeat
  end tell