"use strict"; var gTestTab; var gContentAPI; add_task(setup_UITourTest); add_UITour_task(async function () { ok( !gBrowser.selectedBrowser.currentURI.spec.startsWith("about:reader"), "Should not be in reader mode at start of test." ); await gContentAPI.toggleReaderMode(); await waitForConditionPromise(() => gBrowser.selectedBrowser.currentURI.spec.startsWith("about:reader") ); ok( gBrowser.selectedBrowser.currentURI.spec.startsWith("about:reader"), "Should be in reader mode now." ); });