Chrome Extension : How to intercept requested urls? <p>How can an extension intercept any requested URL to block it if some condition matches?</p> <p><a href="http://stackoverflow.com/questions/30585385/firefox-extension-intercepting-url-it-is-requesting-and-blocking-conditionally">Similar question for Firefox.</a></p> <p>What permission needs to be set in manifest.json?</p>