My first question is why are you using a development version of Firebug? I copied and pasted the jQuery example into an html file and tested it and I get no error in FF 3.5.2 with the current release version of Firebug 1.4.2
Secondly, why are there 2 class declarations in your original input example? Why not just do class="required prompt"? On Sep 10, 9:46 am, Aaron Kreider <aa...@campusactivism.org> wrote: > This happens on the example > demo:http://docs.jquery.com/Plugins/Validation#Example > > Firefox 3.5.2 > Firebug 1.5X.0a22