How do I make Gmail my Default Email Client? Google Chrome must first be installed & Set to be the Default Mail Handler When you click on an email link in a Web page or email message, your computer will open a new compose window with the email address in the To: line. The program used to compose the message is determined by the Default Mail Handler for your computer. You can set Google Chrome to be the default mail handler in a couple ways. 1) From Your Address Bar When you log in to your Google Gmail Account, you’ll see a gray ​ ​ double-diamond icon in the far right of your address bar. Clicking this icon opens a Menu with three choices for what the default mail handler should be. Select "Allow" if you want Google Chrome to be your default email handler. 2) From Google Chrome Settings If you don’t see the gray double-diamond icon in your Address bar, you can set the default mail handler in your Google Chrome settings. 1. From the menu in Chrome (three dots at the top right), choose Settings (or Preferences, depending on your operating system). ​ ​ ​ ​ At the bottom of the Settings page, click Show advanced settings. ​ ​ 2. In the Privacy and Security section, click Content settings. A new window ​ ​ opens. 3. In the Handlers section, click Handlers. The Protocol Handlers window opens. ​ ​ 4. You want to set mail.google.com as the Default. NOTE: If the mail.google.com shows as “Blocked” in the Handles section, click the three dots to the left and select Remove. When you go back to your Gmail account, depending on your version of Windows, you’ll either see the gray double-diamond icon the right of the URL bar or will see a prompt to set the email default. .