Great thing, thank you for doing that! These are so oftenthose situations where I was annoyed on some sites, or found very important things were aria-hidden. Good work. A small feature I could still imagine in this add-on, is to change the site language (mostly specified through the lang attribut in the tag). Sometimes it is false, causing the screenreader to sound funny, but not speak in the right language. But appart from that, thank you for this add-on!