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I uploaded a newer version (4.0) and my mac is not compatible. How do I find an older version to upload?

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I downloaded a newer version of Foxfire (4.0) then my MacBook Pro would allow. When downloading, I was prompted to "cancel" or "replace" the already existing version of Firfox and I allowed it to replace. When I tried running the new version a prompt came up to tell me my OS was not compatible for the version of Firefox 4.0. I want to re-download an older version of Firefox but can't seem to find it.

I downloaded a newer version of Foxfire (4.0) then my MacBook Pro would allow. When downloading, I was prompted to "cancel" or "replace" the already existing version of Firfox and I allowed it to replace. When I tried running the new version a prompt came up to tell me my OS was not compatible for the version of Firefox 4.0. I want to re-download an older version of Firefox but can't seem to find it.

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Firefox 4 requires at least OS X 10.5 and an Intel Mac. 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

If you prefer, you can get the latest version of Firefox 3.6 from http://www.mozilla.com/en-US/firefox/all-older.html