Method firefoxOptions_

javascript/selenium-webdriver/firefox.js:259–266

* @return {!Object} * @private

()

   * @private
   */
  firefoxOptions_() {
    let options = this.get(FIREFOX_CAPABILITY_KEY)
    if (!options) {
      options = {}
      this.set(FIREFOX_CAPABILITY_KEY, options)
    }
    return options
  }

  /**
   * @return {!Profile}