def METHOD_NAME(driver, pages):
    zip = os.path.join(extensions, "webextensions-selenium-example.zip")
    target = os.path.join(extensions, "webextensions-selenium-example")
    with zipfile.ZipFile(zip, "r") as zip_ref:
        zip_ref.extractall(target)
    id = driver.install_addon(target)
    assert id == "webextensions-selenium-example@example.com"
    pages.load("blank.html")
    injected = WebDriverWait(driver, timeout=2).until(
        lambda dr: dr.find_element(By.ID, "webextensions-selenium-example")
    )
    assert injected.text == "Content injected by webextensions-selenium-example"
    driver.uninstall_addon(id)
    driver.refresh()
    assert len(driver.find_elements(By.ID, "webextensions-selenium-example")) == 0