Frequently Asked Questions

General Questions

• I have lost my license key!

  Please visit the Little Snitch Support pages for further information how to retrieve your lost license key.

  Little Snitch Support

• I have problems with my order!

  Please visit the Little Snitch Support pages for further information how to resolve order related issues.

  Little Snitch Support

• How can I uninstall Little Snitch?
  

  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.
• Does Little Snitch handle incoming network connections?

  Little Snitch only handles outgoing network connections on all network interfaces (AirPort, PPP, network cards, etc.). It intercepts and defers an application’s network access until you decide to allow or deny the request, or it handles the request automatically based on an already defined rule.

  Little Snitch does not intercept incoming connections. They can be blocked with the built-in firewall of Mac OS X. This firewall can be configured in System Preferences > Security > Firewall (or in System Preferences > Sharing > Firewall on Max OS X 10.4).

Compatibility

• Does Little Snitch run on Mac OS X 10.6 Snow Leopard?

  Yes, starting with version 2.2 Little Snitch is compatible with Mac OS X 10.6 (Snow Leopard).

  The upgrade is free for current Little Snitch 2.x license owners.

  Download Little Snitch 2.2

• Does Little Snitch run on Mac OS X 10.5 Leopard?

  Yes, Little Snitch 2 is compatible with Mac OS X 10.5 Leopard.

  Little Snitch 1.x, however, does not run on Leopard. Please download Little Snitch 2 instead if you wish to install Little Snitch on a computer running Mac OS X 10.5.

• Does Little Snitch run on Mac OS X 10.4 Tiger?
  Little Snitch versions before 1.2 won’t run on Mac OS X 10.4 Tiger. Please download and install Little Snitch 1.2 or Little Snitch 2 which both are compatible with Mac OS 10.4 Tiger.

Troubleshooting

• Installation fails on Mac OS X 10.4 if VirusBarrier X5 is installed

  Unfortunately, VirusBarrier X5 prevents all other software from changing a certain system file - and it does this without any warning. This makes it impossible for some applications to be installed properly, among them Little Snitch.

  Workaround:
  Uninstall VirusBarrier X5, then install Little Snitch and then reinstall VirusBarrier X5.

• Leopard does not boot with older versions of Little Snitch 1
  If you have an older version of Little Snitch 1 (prior to version 1.2.4) installed, Leopard may crash during startup. To fix the problem, hold down the Shift key during startup to start your computer in Safe Mode and to prevent Little Snitch from being loaded. Then upgrade to the latest version of Little Snitch 2 which is compatible with Mac OS X 10.5 Leopard.
• Little Snitch loses rules for Guest accounts!
  This issue has been addressed in Little Snitch 2.1. Please install the latest version available on our download page. .