Changes

Fennec does not show scrollbars. Finger touch panning is used to move and scroll through content. Many standard XUL widgets (<code>scrollbox</code>, <code>autoscrollbox</code> , <code>listbox</code> and <code>richlistbox</code>) are already supported in Fennec.  If you create a custom XBL widget which embeds one of these scrollable widgets, you'll need to expose a <code>scrollBoxObject</code> property from your XBL, so Fennec can access the scroll box object of the embedded widget.  <property name="scrollBoxObject" readonly="true" onget="return this._mylist.scrollBoxObject;"/>