fp = webdriver.FirefoxProfile()
fp.DEFAULT_PREFERENCES['frozen']["dom.disable_open_during_load"] = True

请勿使用profile.set_preference('dom.disable_open_during_load', True)，因为profile.default_preference将被冻结的覆盖.

Don't use profile.set_preference('dom.disable_open_during_load', True) as profile.default_preference will be overrided by frozen's.