[1] webNavigation - Mozilla | MDN ( (2016-05-28 06:59:49 +09:00)) https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/webNavigation
[2] chrome.webNavigation - Google Chrome ( (2016-06-17 10:01:45 +09:00)) https://developer.chrome.com/extensions/webNavigation