After upgrading to Firefox 3.5.1 some issues appeared:
  1. My accordion control -at least mine- control is break so the expand/collapse is not working
  2. The tree control expand/collapse is not working - check the example explorer
  3. The window control appeared with nasty shadow around the window - check the examples explorer
In the error console I have multiple java script errors:
<ul>[*]window.attachEvent is not a function[*]ss is undefined[*]Permission denied to access property 'dom' from a non-chrome context[*]Error: this.doc.selection is undefined[/list]Hope this finds you well .. if anybody face the same issue please feedback.