Little Snitch 3
Open the Little Snitch Uninstaller application and follow the instructions to remove Little Snitch. This uninstaller also removes all previous versions of Little Snitch. The Uninstaller can be found at /Library/Little Snitch/Little Snitch Uninstaller. If you don’t have the uninstaller available on your computer anymore, you can re-download it from our Download Page
Little Snitch 2
Open the Little Snitch Installer application and click the Uninstall button. If you don’t have the Installer
available on your computer anymore, you can re-download it from our Download Page
User specific settings
Upgrades always preserve user specific rules and settings. The uninstaller bundled with Little Snitch 2 deletes all user specific rules and settings. The new uninstaller in Little Snitch 3 lets you choose whether to remove or preserve these rules and settings.
/Library/Application Support/Objective Development/Little Snitch/
~/Library/Application Support/Little Snitch/
The “~” tilde sign refers to your home folder.