one last problem with orca and xfce

[Jonathan Nadeau]

Hello list,
Thansk for all of your help and suggestions. Here is my last problem. I 
have all of xfce accessible except for two programs. The two programs 
are Firefox and Thunderbird. When I go to the menu and open these 
programs they open but Orca doesn't read the programs like they normally 
do. I thought maybe the problem was that this version of   programs for 
some reason weren't accessible. So right now I'm running xubuntu 12.10 
and I installed the gnome desktop where both of these programs are 
accessible normally. I logged out and logg into Gnome and Firefox and 
Thunderbird were accessible. Then I logged out of Gnome and back into 
xfce and they both weren't accessible again.Does anyone have any ideas 
of why this could be happening?