Since I joined the accessibility team at Mozilla I took on one of the task that was in need to be solved: bringing back accessibility in Firefox on Mac as it has been lagging behind.

Marco already wrote about how things are ramping up and started filing more bugs on what is broken in the build I provided.

With the quick release cycle, I can't really commit on which Firefox version this will be in, but the code is current in Nightly, aka Firefox 12, except that on Mac we don't build with accessibility enabled yet.