Firefox Step 1 Launch Firefox, select “Tools” and then choose “Options”. Step 2 Click the “Content” tab and then select the “Block pop-up windows” check box. Apply the changes by selecting “OK”. Google Chrome Step 1 Open the browser, select the wrench icon and then choose “Options”. Step 2 Choose the “Under the Hood” tab and then select “Content settings”. Click the “Pop-ups” tab, select the “Do not allow any sites to show pop-ups (recommended)” radio button and then choose “Close”.
Step 3 Click the “Customize” button in front of the “Pop-ups” category and then click customize” again.