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Why does it say that the updated version of Firefox (which I am trying to download) is not compatible with my operating system when I have Mac OS X 10.5.8?

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Why does it say that the updated version of Firefox (which I am trying to download) is not compatible with my operating system when I have Mac OS X 10.5.8? I had an older version of Firefox and it said I needed to update it but that was the message that appeared.

Why does it say that the updated version of Firefox (which I am trying to download) is not compatible with my operating system when I have Mac OS X 10.5.8? I had an older version of Firefox and it said I needed to update it but that was the message that appeared.

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Sorry, it's because Firefox 4+ are only compiled for the Intel processors.

There is a separate project for PPC Macs called Ten Four Fox. You might give it a spin when you're tired of 3.6.

http://www.floodgap.com/software/tenfourfox/