How to Allow Popup Windows in Google Chrome Browser. Open Google Chrome Browser on Your Computer. Click on the Page Icon at the Top Right Corner of the Browser Go to the “Settings” menu. Scroll Down to the Bottom of the Window. Click “Show Advanced Settings” Link. Click On the “Content Settings” Button Under the “Privacy” Section. Scroll Down and Go to the “Pop-ups” tab. Check the Radio Button Next to “Allow all Sites to Show Popups.” Click “Done” to Save the Settings. Google Chrome Will Now Allow Pop-up Windows in all Websites.