Hide Breadcrumb on Taxonomy Term View
This is easily done with a little bit of theming. Based on the page being displayed, you can unset the $breadcrumb template variable to suppress output of the breadcrumbs on that particular page.

Pop a function like this simple example into YOUR_MODULE's template.php:

function YOUR_MODULE_preprocess_page(&amp;$vars) {
  if ($_GET['q'] == 'general-chat') {
    unset($vars['breadcrumb']);
  }
}