I need to use a web page that uses flash and firefox is blocking it. I looked at the settings and it says that the flash firefox settings don't apply to 'protected flash". It can't be turned off in 64-bit firefox on windows 7. It says it is blocked by default with "NPAPI plugin sandbox ". It says the blocking can cause plug-in crashes, which is what I had. Now the flash doesn't run at all. Is there a way to turn that "NPAPI plugin sandbox" off? The web page is definitely safe so there isn't a flash security issue here.