Comment 14 for bug 1187993

And to add to the tools, a few months back I noted a few free tools recommended by Twitter's "accessibility guy", Jennison Asuncion, at the OLA SuperConference:

* NVDA: http://www.nvaccess.org/
* WebAnywhere: http://webanywhere.cs.washington.edu

(see https://plus.google.com/s/%23olasc14%20%23accessibility for the context)