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I downloaded Firefox 4, have a Mac Powerbook G4 with OS X and firefox downloads, but opens with an X on the symbol and won't work, says architecture won't support - what is up?

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  • Last reply by cor-el

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Have tried 4 times to download Firefox 4 and each time it seems to be working OK, but when I go to move the firefox symbol onto the Application symbol, the firefox symbol has an X in an O indicating that it won't work and doesn't. Note says that the architecture won't support the new download. Can I get the update and if so, how? Dave Morrison

Have tried 4 times to download Firefox 4 and each time it seems to be working OK, but when I go to move the firefox symbol onto the Application symbol, the firefox symbol has an X in an O indicating that it won't work and doesn't. Note says that the architecture won't support the new download. Can I get the update and if so, how? Dave Morrison

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Firefox 4 doesn't run on a PowerPC Mac.

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

For Mac OS X 10.4.11 or Mac OS X 10.5.8 you can look at:

Firefox 3.6.x can be found here: