Rated 4 out of 5 stars

This looks like a great tool. Its easy and very, very simple to use. Good for elderly with problem reading text on the internet etc.
I am however experiencing a problem, I get no sound whatsoever, what can I do to fix this?

This review is for a previous version of the add-on (0.0.2). 

Sound

I'm not too sure what you mean, there shouldn't be any sound, did you watch the video on the homepage?