SketchUp can help you manage which extensions will load when you first open the application. To find these options, click Settings () in the Extension Manager.

You can choose from three options:

• Identified Extensions Only – SketchUp will only load extensions digitally signed by a registered SketchUp Developer. Any unidentified extensions cannot be loaded when this mode is selected.
• Approve Unidentified Extensions – Each time SketchUp starts, a list appears containing all installed extensions. Use this list to select which extensions you want to load. SketchUp will remember your selections between sessions.
• Unrestricted – All extensions will load when SketchUp starts. This is the least secure mode and should only be selected if you trust all installed extensions.

You can switch between policy modes at any time. If you do, you must restart SketchUp to remove already loaded extensions that don’t match your new policy selection.