Scrolling multiline textboxes

I'm looking for a way to scroll multiline textboxes to the bottom of 
their content. I tried barking up the <scrollbox> and <scrollbar> tree, 
but each time I put a textbox inside a scrollbox, Mozilla crashes. It 
looks like from the docs that this is the right place to start, but 
before I figure out what's causing the crash, can someone confirm how 
you manually control a textbox's scrollbar?

Thanks
Ken


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