1. Firefox Download Mac Os X
2. Download Firefox Mac Os X 10.4 11 X
3. Firefox For Mac 10.7
4. Download Firefox Mac Os X 10.4 1152

You need some more RAM, but:

• I'm running Mac OS X 10.4.11 'Intel,' TenFourFox doesn't help with that. Whenever I load Firefox it tells me to upgrade to 12.0 for security reasons. 12.0 is most definitely not compatible with the version of OS X on my MacBook Pro.
• Nov 14, 2007 The 10.4.11 Update is recommended for all users running Mac OS X Tiger and includes general operating system fixes that enhance the stability, compatibility and security of your Mac. This update also includes Safari 3, the latest version of Apple's web browser.
• Mac OS X 10.1 (Firefox 1.0.8), OS X 10.2 and OS X 10.3 (Firefox 2.0.0.20), Mac OS X 10.4 (Firefox 3.X), Mac OS X 10.5 or above (Current Version).

Start by checking if you can run Snow Leopard:

I have a Mac OS X version 10.4.11 with safari version 4.1.3. How can I upgrade the safari on my computer. Under the Apple heading and upgrades it says there are no upgrades available. But, some programs I want to run say I need a later version of safari. Is my computer too old to get at least a safari 5?

Requirements for OS X 10.6 'Snow Leopard'

Firefox Download Mac Os X

OS 10.6 Snow Leopard is once again available from the Apple Store:

and in the UK:

Download Firefox Mac Os X 10.4 11 X

but nobody knows for how long it will be available.

To use iCloud you have to upgrade all the way to Mountain Lion:

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You can also purchase the code to use to download Lion (Lion requires an Intel-based Mac with a Core 2 Duo, i3, i5, i7 or Xeon processor and 2GB of RAM, running the latest version of Snow Leopard), or you can purchase Mountain Lion from the App Store - if you can run that:

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When you have installed it, run Software Update to download and install the latest updates for Snow Leopard.