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mistake loading Firefox 4.0 need my old version back for MAc10.4.11

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I made a mistake loading firefox 4.0. It doesn't work on my system for MAC 10.4.11. I can I re download my old firefox 3.6.16?

I made a mistake loading firefox 4.0. It doesn't work on my system for MAC 10.4.11. I can I re download my old firefox 3.6.16?

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Thank you. Your suggestion worked. Now I have to save up to buy a new MAC so I can operate new versions of software.