flash9 hangs firefox a lot

[Tsu-Fan Cheng]

Hi,
   just recently upgrade flash 7 to flash 9 following the
instructions. but lately found out that firefox hangs a lot when
visiting pages running flash. and the console reports:

*** NSPlugin Wrapper *** ERROR: NPP_Destroy() wait for reply: Message timeout
*** NSPlugin Wrapper *** ERROR: NPObject 0x32435650 is no longer valid!


how can I get rid of that?? thank you!!


TFC