Select option attribute selector issue in Firefox

Select option attribute selector issue in Firefox

Using jQuery 1.4.1 in Firefox 3.6

I'm working in a system that automatically inserts options into certain SELECT elements.  I always know the text that is being inserted, but not necessarily the value.

If I'm trying to get a certain option using the [text=] attribute, it returns null if I include the text in quotes in Firefox.

e.g.
  1. var myindex = $('#fielddiv select[id="mc.route.stepstatus.step9"] option[text="Work Inprocess"]').attr('index');
If I leave the quotes off of the [text=] selector, it returns the index as it should.  The [id=] selector doesn't have this problem.
Either way works in IE7.