"use strict"; const INSTALL_PAGE = `${BASE}/file_install_extensions.html`; async function installMozAM(filename) { BrowserTestUtils.loadURIString(gBrowser.selectedBrowser, INSTALL_PAGE); await BrowserTestUtils.browserLoaded(gBrowser.selectedBrowser); await SpecialPowers.spawn( gBrowser.selectedBrowser, [`${BASE}/${filename}`], async function (url) { await content.wrappedJSObject.installMozAM(url); } ); } add_task(() => testInstallMethod(installMozAM, "installAmo"));