Like Crunchyroll, the FunimationNow plugin requires authenticating with a premium account to access some content: --funimation-email, --funimation-password. In addition, this plugin requires the incap_ses cookie to be sent with each HTTP request (see issue #2088). This unique session cookie can be found in your browser and sent via the --http-cookie option.

$ streamlink --funimation-email='xxx' --funimation-password='xxx' --http-cookie 'incap_ses_xxx=xxxx='


There are multiple ways to retrieve the required cookie. For more information on browser cookies, please consult the following: