[orca-list] Firefox Add-ons panel

["Bohdan R. Rau" <ethanak polip com>]

Hi all

I just noticed very strange behavior of Orca.

In Firefox Add-ons panel, while moving on extensions list Orca sometimes
does not read the extension name but only announces "list element
grayed", sometimes reads nothing. Pressing KP_Enter on this position
causes Orca to re-announce "list element grayed" or even read next
position. Is it bug in Firefox or Orca?

Both Firefox and Orca just updated to last trunk.

Bohdan