You often noticed that there are many people who used another people’s content to make money by showing their ads in an add-on frame. I am sure, you definitely want to stop this thing around, using the following snippet, you will be able to force your WordPress blog to break out of frames, which means the visitor will only see your blog but not the one who put on an add-on frame. Simply paste the following code into your functions.php file, and you are done.

Snippet Source/Credit: WP Mix