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Is Firefox x64 more secure against Malware attacks than Firefox x32?

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I have a Windows 7 Home Premium SP1 x64 computer. It is my understanding that Windows 7 HP SP1 x64 is more secure against Malware-Virus attacks then Window 7 HP SP1 x32.

I am using Firefox 6.0B2 x32 and just started also using Firefox 8.0A1 x64. Both are working fine.

Is the x64 version of Firefox more secure than the x32 version against Malware-Virus attacks on a Windows 7 SP1 x64 computer simply because it is x64.

I have a Windows 7 Home Premium SP1 x64 computer. It is my understanding that Windows 7 HP SP1 x64 is more secure against Malware-Virus attacks then Window 7 HP SP1 x32. I am using Firefox 6.0B2 x32 and just started also using Firefox 8.0A1 x64. Both are working fine. Is the x64 version of Firefox more secure than the x32 version against Malware-Virus attacks on a Windows 7 SP1 x64 computer simply because it is x64.

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No, it isn't.