1. Click the Customize and control Google Chrome menu (the three dots in the upper right corner) 
  2. Select Settings. 
  3. Click Advanced at the bottom. 
  4. Under Privacy and security, click the Content Settings button. 
  5. Select Pop-ups and redirects. 
  6. To disable the pop-up blocker, uncheck the Blocked (recommended) box. 
  7. To enable pop-ups on specific sites, check Blocked (recommended) and click Add next to Allow and enter the URL(s).