Orca no longer works with Firefox?

[Alan Jenkins]

Firefox integration seems to be bit-rotting, presumably due to Firefox upgrades with no corresponding Orca upgrade.

The easiest example is "read all". The + key on the number pad is supposed to be bound to "read all". When I press it, nothing is read out, and I get this exception:

Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.7/orca/speechdispatcherfactory.py", line 337, in _say_all
    context, acss = iterator.next()
  File "/usr/lib/pymodules/python2.7/orca/scripts/toolkits/Gecko/script.py", line 1135, in textLines
    obj = contents[-1][0]
IndexError: list index out of range

The arrow keys are no longer captured by Orca either. I don't get an exception for that.

I do get other exceptions though. This happened periodically while typing into this text box:

Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.7/orca/scripts/toolkits/Gecko/script.py", line 4378, in findNextCaretInOrder
    includeNonText)
  File "/usr/lib/pymodules/python2.7/orca/scripts/toolkits/Gecko/script.py", line 4391, in findNextCaretInOrder
    documentFrame = self.utilities.documentFrame()
  File "/usr/lib/pymodules/python2.7/orca/scripts/toolkits/Gecko/script_utilities.py", line 181, in documentFrame
    documentFrame = relation.getTarget(0)
  File "/usr/lib/pymodules/python2.7/pyatspi/accessible.py", line 657, in getTarget
    target = target._narrow(Accessibility.Accessible)
AttributeError: 'NoneType' object has no attribute '_narrow'

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: gnome-orca 3.0.0-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-11.48-generic 2.6.38.8
Uname: Linux 2.6.38-11-generic x86_64
Architecture: amd64
Date: Mon Sep 5 13:42:30 2011
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, user)
 SHELL=/bin/bash
SourcePackage: gnome-orca
UpgradeStatus: Upgraded to natty on 2011-06-19 (77 days ago)

[Alan Jenkins (aj504)]

Firefox version: 6.0.1+build1+nobinonly-0ubuntu0.11.04.1

[Alan Jenkins (aj504)]

Not present in 11.10.

(And I don't have 11.04 to test anymore, so I won't be able to tell if someone fixes it in 11.04).

[Alan Jenkins (aj504)]

Gah. Sorry, it's not working for me in 11.10 either. (Environment: Unity 2D, as suggested by the Ubuntu Accessibility blog).

I don't think I'm getting the same errors. But Orca is getting very noisy (in terms of stdout/stderr messages), even with no other applications open.

[Alan Jenkins (aj504)]

Ok, I switched to gnome-session-fallback. That fixes the flood of errors, and I can see that the same exception is being generated when I press KP_ADD.

[Alan Jenkins (aj504)]

Works fine on my Ubuntu 12.04 with unity-2d. Phew.