{"mdn_url":"https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/windows/onFocusChanged","source_file":"webextensions/api/windows.json","support":{"chrome":{"version_added":true},"edge":{"version_added":"14"},"firefox":{"version_added":"45"},"firefox_android":{"version_added":false},"opera":{"version_added":true},"safari":{"version_added":"14"},"safari_ios":{"notes":"Fires when toggling in or out of private browsing mode, leaving Safari to the home screen, and returning to Safari from the home screen.","version_added":"15"}}}