There is a relevance problem in the Mozilla fixlets:
NOT (name of it as uppercase contains "ESR") of key of (keys "HKEY_LOCAL_MACHINE\Software\Mozilla\Mozilla Firefox" of it) of x64 registry
…omits does not return true on machines with multiple copies, due to a uniqueness error. I suggest replacing this line with:
(not exist (keys of keys "HKEY_LOCAL_MACHINE\Software\Mozilla\Mozilla Firefox" of x64 registry) whose (name of it contains "ESR"))
The same issue exists on both the x64 and x86 fixlet versions.