gMT should run well on an Apple Macintosh computer with MacOS X 10.7+ and an Intel CPU. Java must be installed in your system and enabled on your browser.

Install Java

• Install Java directly from Oracle.

Safari Setup

If using Safari, you must enable Java use on the browser explicitly otherwise java apps won’t run at all.

Safari 7 / MacOS X 10.9 / Mavericks

• Try to use any gMT converter like this one. This will populate the list of allowed sites for Java in Safari in the next sections.
• Go to Safari -> Preferences -> Security
• Click on ‘Allow Plug-ins’
• Click on Manage Website Settings, this window will pop up

• Select Java on the left pane. On ‘configured websites’ select ‘Allow Always’ and then ‘Run in Unsafe Mode’ for the godromo.com site
• Allow the selection on the following prompt:

• Close and restart Safari

Safari 6 / MacOS X 10.8 / Mountain Lion

• Go to Safari->Preferences->Security
• Click on ‘Allow Java’
• Close and restart safari
• On the first run Safari may prompt you to allow the app to run like this. Allow the app so it can run

Firefox

• Make sure Java plugin is enabled on Firefox. Go to Tools->Addons->Plugins and make sure java plugin is not disabled

Chrome

As of this writing, Google Chrome does not support Java on the mac because it’s a 32 bit browser. Only 64bit browsers support Java on Mac OS X. Please use a 64 bit browser like Safari or Firefox.

Verify install

Go to the java verification page and you should get an confirmation message

Pre-Lion versions, up to 10.6

Apple  disabled java on the browser on Java 6 so you must install Java 7+ to run the gMT app.