Broken Firefox demo

The inclusion of this youtube video with the goemap api, produces the following error in Firefox 3.6.3 Mac:

  Error: setting a property that has only a getter
  Source File: http://www.google.com/uds/api/visualization/1.0/14fba8f5d9397ffc88037ca3d1185765/default,geomap.I.js
  Line: 133

* Note it is not necessary to display the map to trigger the bug.