Rated 3 out of 5 stars
Very useful ad-on but it needs improvements, or it is useless:
1. When the text is made a little bigger, there are text boxes that do not allow you to see some of the enlarged text. So NST becomes not useful (better use zoom)
2. NST should remember text changes to sites. Many sites have different text sizes, so I keep changing the text size (even if I come back to same pages/sites seen before).