"use strict"; async function installFile(filename) { const MockFilePicker = SpecialPowers.MockFilePicker; MockFilePicker.init(window.browsingContext); MockFilePicker.setFiles([new FileUtils.File(getTestFilePath(filename))]); MockFilePicker.afterOpenCallback = MockFilePicker.cleanup; const { document } = await openAddonsMgr("addons://list/extension"); // Do the install... await waitAboutAddonsViewLoaded(document); const installButton = document.querySelector('[action="install-from-file"]'); installButton.click(); } add_task(async function test_install_extension_from_local_file() { // Listen for the first installId so we can check it later. let firstInstallId = null; AddonManager.addInstallListener({ onNewInstall(install) { firstInstallId = install.installId; AddonManager.removeInstallListener(this); }, }); // Install the add-ons. await testInstallMethod(installFile); // Check we got an installId. ok( firstInstallId != null && !isNaN(firstInstallId), "There was an installId found" ); const tabmail = document.getElementById("tabmail"); tabmail.closeTab(tabmail.currentTabInfo); });