Root password for MAC is required to do the below:

Open up terminal (Command-space, then type "terminal"

In the window that opens, you can cut and paste the following commands:

sudo mkdir -p /Library/Internet\ Plug-Ins/disabled 
sudo mv /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin /Library/Internet\ Plug-Ins/disabled 
sudo ln -sf /System/Library/Java/Support/Deploy.bundle/Contents/Resources/JavaPlugin2_NPAPI.plugin /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin 
sudo ln -sf /System/Library/Frameworks/JavaVM.framework/Commands/javaws /usr/bin/javaws