We're currently aware that the email signup page located at http://www.supergiantgames.com/join isn't working when using Firefox.
As a workaround we've seen that uninstalling and then reinstalling Firefox fixes this issue.
We're currently aware that the email signup page located at http://www.supergiantgames.com/join isn't working when using Firefox.
As a workaround we've seen that uninstalling and then reinstalling Firefox fixes this issue.