Enable Safari Hidden Debug Menu in Mac OS X
Here’s how to enable the hidden Debug menu in Safari for Mac OS X with the assistance of a defaults command string in the terminal.
How to Enable Safari’s Hidden Debug Menu on Mac
This works in all versions of Safari in nearly all versions of macOS / OS X, from all modern releases to most prior versions as well:
- Quit Safari on Mac
- Launch the Terminal from /Applications/Utilities/ and enter the following defaults write command exactly:
- Hit return, then relaunch Safari
defaults write com.apple.Safari IncludeInternalDebugMenu 1
The “Debug” menu will be visible to the far right in Safari’s menubar choices.
If you want to disable the menu, go back to the Terminal and type:
defaults write com.apple.Safari IncludeInternalDebugMenu 0
Again you will need to relaunch Safari for changes to take effect.
We’ve poked around in the Debug menu before to stop auto-refreshing in Safari by disabling multi-process windows, that is no longer necessary with the latest version of Safari, however.
Generally aimed at developers, Safari debugging, and web workers, the Debug menu has many features that can be useful to more advanced Safari users as well. If you’re a tinkerer and like to mess around with settings, you’ll find plenty to keep you busy and explore.