Orca disabling orca scripts with firefox in order to use firevox?

[Aruni Sharma <libranarsh gmail com>]

Hello list I have tried firevox plugin both in windows and linux. The 
plugin is pretty good and I have been able to surf the web quite easily. 
However, I have noticed that the orca scripts are also speaking contents 
in the firefox window thereby interfering with firevox. This happens as 
I am using orca linux local server TTS as output for firevox. I would 
like to know whether it would be possible to disable the orca scripts 
for firefox maybe temporarily so that the orca tts server can be used 
and firevox can function without interference.
Thanks and regards,
Aruni.