The present invention provides a method, system, and computer program product for preventing a browser from loading content from undesirable sources. A method in accordance with an embodiment of the present invention includes: selecting an area of a web page containing undesirable content; substituting an alternate Internet Protocol (IP) address for a hostname of a website that provided the undesirable content based on a profile; and redisplaying the web page with content from the alternate IP address displayed in the selected area of the web page.