we have made the changes in the digest level for the 32 bit folder Mozilla Firefox folder where 32 bit fixlet should be applicable only for the 32 bit machine.
where as it can’t be installed in the 64 bit machine.
so please ask the customer to use the Custom copy by removing the below mentioned relevance, if they want to install in 32bit fixelt in 64 bit machine.
Q: not (x64 of operating system OR ia64 of operating system)
And 64 bit fixlet will be applicable only for 64 bit machine