/** * Test the Tab Manager visibility respects browser.tabs.tabmanager.enabled preference * */ "use strict"; // The hostname for the test URIs. const TEST_HOSTNAME = "https://example.com"; const DUMMY_PAGE_PATH = "/browser/base/content/test/tabs/dummy_page.html"; add_task(async function tab_manager_visibility_preference_on() { Services.prefs.setBoolPref("browser.tabs.tabmanager.enabled", true); let newWindow = await BrowserTestUtils.openNewWindowWithFlushedCacheForMozSupports(); await BrowserTestUtils.withNewTab( { gBrowser: newWindow.gBrowser, url: TEST_HOSTNAME + DUMMY_PAGE_PATH, }, async function (browser) { await Assert.ok( BrowserTestUtils.is_visible( newWindow.document.getElementById("alltabs-button") ), "tab manage menu is visible when browser.tabs.tabmanager.enabled preference is set to true" ); } ); Services.prefs.clearUserPref("browser.tabs.tabmanager.enabled"); BrowserTestUtils.closeWindow(newWindow); }); add_task(async function tab_manager_visibility_preference_off() { Services.prefs.setBoolPref("browser.tabs.tabmanager.enabled", false); let newWindow = await BrowserTestUtils.openNewWindowWithFlushedCacheForMozSupports(); await BrowserTestUtils.withNewTab( { gBrowser: newWindow.gBrowser, url: TEST_HOSTNAME + DUMMY_PAGE_PATH, }, async function (browser) { await Assert.ok( BrowserTestUtils.is_hidden( newWindow.document.getElementById("alltabs-button") ), "tab manage menu is hidden when browser.tabs.tabmanager.enabled preference is set to true" ); } ); Services.prefs.clearUserPref("browser.tabs.tabmanager.enabled"); BrowserTestUtils.closeWindow(newWindow); });