Firefox no longer works with Mac OS X 10.4 or PowerPC processors

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  • Revision id: 23788
  • Created:
  • Creator: hsivonen
  • Comment: It's rather useless to link to apple.com/macosx, since it's non-obvious how to obtain the software from there if you don't already have Snow Leopard
  • Reviewed: No
  • Ready for localization: No
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Firefox 3.6.28 is the last version of Firefox that works with Mac OS X 10.4 or PowerPC processors. To keep your computer and personal information safe, we recommend that you upgrade to Mac OS X 10.7 and install the latest Firefox if possible. This article covers your upgrade options.

Note: This article only applies to Mac OS X.

Intel Processors

If you have an Intel processor and Mac OS X 10.4, your best option (secure and easy) is to upgrade Mac OS X. There is some cost involved with that so we've included some other options:

Option 1: Upgrade Mac OS X

You should upgrade to the latest Mac OS X (10.6 or 10.7). This is the most secure option and will allow you to run the latest and greatest Firefox.

  1. Mac OS X 10.6 is available for purchase from Apple and is a prerequisite for upgrading to Mac OS X 10.7.
  2. Update Firefox.
Note: Some Intel based Macs can only update to Mac OS X 10.6.

Option 2: Switch to the Camino web browser

If you can't upgrade Mac OS X, you can switch to the latest version of Camino.

Warning: Continuing to use Mac OS X 10.4 is no longer supported by Apple and poses a significant security risk.

PowerPC Processors

If you have a PowerPC processor you won't be able to upgrade MacOS X. For most people the best option will be to switch to a newer computer. There is some cost involved with that so we've included some other options:

Option 1: Switch to a Mac with an Intel processor

Although getting a newer computer can involve significant cost, a newer Mac will provide a much better experience and allow you to keep Firefox and Mac OS X updated and secure.

Option 2: Switch to a compatible web browser

If you can't replace your computer, you can switch to the latest version of the Camino or TenFourFox web browser.

Warning: Continuing to use Mac OS X 10.4 is no longer supported by Apple and poses a significant security risk.