# Adding the single sign-on extension to a new web portal in Amazon WorkSpaces Secure Browser
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To allow the extension when creating a new web portal, follow these steps.

1. Follow the steps in [Creating a web portal for Amazon WorkSpaces Secure Browser](getting-started-step1.md) until you get to [Configuring user settings for Amazon WorkSpaces Secure Browser](user-settings.md).

1. For step 1 of [Configuring user settings for Amazon WorkSpaces Secure Browser](user-settings.md), under **User permissions**, choose **Allowed** to enable the extension for your web portal.

1. Enter the domain for cookie synchronization, and choose **Add new domain**. 

1. Complete the steps in [Configuring user settings for Amazon WorkSpaces Secure Browser](user-settings.md) and the remaining sections in [Creating a web portal for Amazon WorkSpaces Secure Browser](getting-started-step1.md) to create your web portal.