'use strict'; const { Ci } = require('chrome'); const { openTab, closeTab } = require('sdk/tabs/utils'); const { browserWindows } = require('sdk/windows'); const { getOwnerWindow } = require('sdk/private-browsing/window/utils'); const { isPrivate } = require('sdk/private-browsing'); exports.testIsPrivateOnTab = function(assert) { let window = browserWindows.activeWindow; let chromeWindow = getOwnerWindow(window); assert.ok(chromeWindow instanceof Ci.nsIDOMWindow, 'associated window is found'); assert.ok(!isPrivate(chromeWindow), 'the top level window is not private'); let rawTab = openTab(chromeWindow, 'data:text/html,