OS and App Versions
Determining the OS version on a Mac
1. Apple Menu > About This Mac
2. The OS on this machine is Mac OS X 10.6.2 (Snow Leopard).
Determining the App version on a Mac
I am going to determine the version of Firefox installed on this machine. Compared to PC computers, finding the version of an App on a Mac is fairly consistent. With the Menu bar fixed to the top of the screen, the first menu option is always titled after the name of the App. Make sure that this App is the active App.
1. Firefox Menu > About Mozilla Firefox
2. The version of Firefox on this machine is 3.5.7.