{"mdn_url":"https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/dom/openOrClosedShadowRoot","source_file":"webextensions/api/dom.json","support":{"chrome":{"version_added":"88"},"edge":{"version_added":"88"},"firefox":{"notes":"Use <code>element.openOrClosedShadowRoot</code>, available since Firefox 63.","version_added":false},"firefox_android":{"notes":"Use <code>element.openOrClosedShadowRoot</code>, available since Firefox 63.","version_added":false},"opera":{"version_added":"74"},"safari":{"version_added":false},"safari_ios":{"version_added":false}}}