We currently parse and store the CSS 2.0 aural style sheet properties. We've never computed the values, though (bug 47159), which means they're not useful for anything. The support we have is also way off from the current approach to aural CSS at http://dev.w3.org/csswg/css3-speech/ . This code is getting in the way of cleaning up nsComputedDOMStyle (bug 264517), because I'd like to be able to assume that we have computed style implementations for all properties we support.

Comment on attachment 525181 [details] [diff] [review] patch r=me

I've added the dev-doc-needed flag as there was some documentation about this in the MDC. See (non exhaustive list): https://developer.mozilla.org/en/CSS/azimuth https://developer.mozilla.org/en/CSS/Aural https://developer.mozilla.org/fr/CSS/azimuth I think Aural should be replaced by a text saying it is deprecated and the pages for azimuth should be simply atomized. We'll see what Sheppy thinks about this.

Here's what I've done: https://developer.mozilla.org/en/CSS/azimuth Updated with a compatibility table that explains the state of support in Firefox; also added a note that the page needs updating, and tagged it as such as well. Also added a note to Firefox 6 for developers.