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I upgraded to 4.0, was to new for G4, refused to load. I have dumped all I can find. Now can not reload 3.5. any help? Thanks Lee

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Firefox after installing 4.o when I tryed to use Firefox it refused and a round circle with a diagonal line across was over the Firefox Icon. It did give an error # but I do not have it. Lee

Firefox after installing 4.o when I tryed to use Firefox it refused and a round circle with a diagonal line across was over the Firefox Icon. It did give an error # but I do not have it. Lee

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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