One of the new features in Firefox 4 that we are very excited about is Content Security Policy, which is a mechanism that works behind the scenes to prevent some of the more severe web-based attacks against users and websites.
Firefox users don’t have to do anything in order to gain this protection. Simply install Firefox 4 and you will instantly receive all of the benefits that Content Security Policy has to offer. Easy!
If you are a web developer who wants to learn how to deploy this feature on your site, head over to the Mozilla Developer Center and see how easy it is to write a policy.
We expect Content Security Policy to be widely adopted very quickly. There are popular commercial websites like Twitter who are already using it, and there are CSP plugins for many of the popular content management systems like WordPress, Django and Drupal. If this works out according to plan, the curtain will soon be coming down on a broad range of nasty web bugs!
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