How do I find out the firmware version of my Mac? May 07, 2022 19:03 Updated To find the firmware version of your Mac: Choose 'About This Mac' from the Apple menu in the corner of your screen. See the macOS name followed by its version number. Related to firmware Related articles How do I close the app on my Mac? How to find your IDFA? Mahjong Journey® How do I update the game? How do I restart the app on my Mac?