Accessibility related questions with Firefox 4

[Hammer Attila]

Hy,

Luke, sorry the lot of questions, but I not see clear following problem 
related:
In Firefox 4 have following bug, with I think not fixed yet (status not 
showed this):
https://bugzilla.mozilla.org/show_bug.cgi?id=619002

In Orca list I see following letter, the thread is Firefox 4.0 Rc2 
initialy inaccessible with Orca:
"Hi Fer.

 > > This is a know issue that comes from a limitation on the atk signal,
 > > affecting those toolkits sending the delete events in a asyncronous
 > > way (Gecko and Java for example, but not gtk):
 > >
 > > https://bugzilla.mozilla.org/show_bug.cgi?id=619002
 > >
 > > Now we have landed new signals on atk to fix this, and probably we
 > > will take advantage of it on the next firefox 4 point release.
 > > However, currently the fix for atk/at-spi will be only included on
 > > GNOME 3. If there are many people still using GNOME 2.32 + firefox, we
 > > can try to push an updated atk/at-spi for GNOME 2.32 including the
 > > fix.
It is my understanding that at least several distros will not be making
the switch to AT-SPI2 in their upcoming release. Please push it.

Thanks!
--joanie"

Not clear me when next Firefox 4.0 release will be containing the 
required fix for bug 619002, I need upgrade for at-spi2 to use full 
adwantages the another atk components related fixes, for example if I 
want hear the backspaced characters in an edit box?? Now the backspaced 
characters prewious is not echoed with Firefox 4 with Orca screen 
reader, this is an important function of course.
With Natty now containing Firefox 4.0 Rc2, but will be containing 
required atk fixes? Natty classic gnome session is based for GNOME 2.32 
or based with GNOME 3.0?
What will be happening for example oldest popular releases (Maverick and 
Lucid) when Ubuntu Mozilla maintainer team will be replace Firefox 3.6 
with 4.0 release with oldest releases? This situation need upgrading 
distro level with gnome-orca package, but possible upgrading another 
components with distro level to not lost accessibility functions after 
this big change is doing with Ubuntu Mozilla team?
For example, now Natty containing at-spi 1.32.0 release.

Attila