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The file is quite large, over 5 GBs, so allow some time to download.

It would be preferable to use Ethernet because it is nearly four times faster than wireless.

MacBook (Late 2008 Aluminum, or Early 2009 or newer) - Model Identifier 5,1 or later 3.

MacBook Air (Late 2008 or newer) - Model Identifier 2,1 or later 5.

Mac mini (Early 2009 or newer) - Model Identifier 3,1 or later 6.

Mac Pro (Early 2008 or newer) - Model Identifier 3,1 or later 7.

Xserve (Early 2009) - Model Identifier 3,1 or later To find the model identifier open System Profiler in the Utilities folder.

Are my applications compatible See App Compatibility Table - RoaringApps.

Is there something I need to do to my computer to allow Sierra to be installed Mac Os 10.7.5 and Safari 6.1.6 MAW.

Since the version of Safari is based on the version of MacOS, you are already running the latest officially-supported version of Safari that can run on that computer.

You can buy yourself some time by running the appropriate version of Firefox that runs under 10.7.5, but I think only about half a year remains before it will no longer be updated.

There are some hobbyist hacks that can install a version of 64-bit kernel on top of (and dependent on) the 32-bit kernel in your machine.

If you are not handy it is not likely to be a solution for you.

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Download Safari For Mac Osx 10.7