2002Andreas Dieses Skript funktioniert korrekt
Code
(async (el, url) => {
if (location != url) return;
el.before(document.getElementById("context_closeTabsToTheStart"));
el.before(document.getElementById("context_closeTabsToTheEnd"));
el.before(document.getElementById("context_closeOtherTabs"));
el.style.visibility="collapse";
})(document.getElementById("context_closeTabOptions"), "chrome://browser/content/browser.xhtml");