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Can you make Firefox 4 usable on Mac OS 10.4.11?

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I would love to stay up to date with the latest versions of Firefox, however, my computer here at work is a Mac OS 10.4.11. As it stands now, I would need Mac OS X to update to Firefox 4. Anyway you guys can make Firefox 4 compatible with Mac OS 10.4.11? I don't see my company being able to upgrade computers (or operating systems, even though we need to) any time in the near future. Thanks!

I would love to stay up to date with the latest versions of Firefox, however, my computer here at work is a Mac OS 10.4.11. As it stands now, I would need Mac OS X to update to Firefox 4. Anyway you guys can make Firefox 4 compatible with Mac OS 10.4.11? I don't see my company being able to upgrade computers (or operating systems, even though we need to) any time in the near future. Thanks!

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There is a third party version of Firefox 4 that runs on OS X 10.4/10.5 and PPC Macs, for details see http://www.floodgap.com/software/tenfourfox