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How can I set Firefix to always start in 32-bit mode?

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Running FF 4.0.1 on OS X 10.6.7. Apparently defaults to start 64-bit mode. This doesn't work with an extension needed for Netflix streaming, requiring restart in 32-bit mode. How can I set FF to start in 32-bit mode in the first place? (And what would I miss out on if I did that?)

Running FF 4.0.1 on OS X 10.6.7. Apparently defaults to start 64-bit mode. This doesn't work with an extension needed for Netflix streaming, requiring restart in 32-bit mode. How can I set FF to start in 32-bit mode in the first place? (And what would I miss out on if I did that?)

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Courtesy of cor-el

https://support.mozilla.com/en-US/questions/823873

Other users should note that Firefox has public release versions of 64bit only for Mac And Linux; not for Windows, yet.

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