Over the past couple of weeks, Alex, David and I have been hard at work refactoring, discussing, and implementing better support for accessible tables in Gecko. Some of this has seen the light in Firefox 3.6alpha, but the heart of the work is currently only in mozilla-central (AKA Firefox 3.7). Update: As of October 29, these changes have also been ported to the Firefox 3.6 AKA the Gecko 1.9.2 branch and will be in the final release of Firefox 3.6. It will not yet appear in the upcoming relea...