twitch.tv broken by rule for justin.tv
When using the HTTPS Everywhere extension, one must disable the rule for justin.tv in order to view channels on twitch.tv. Many people have reported this issue here: http://help.twitch.tv/customer/portal/questions/5754324-twitch-website-frequently-grey-with-only-the-twitch-logo-in-the-center-
I think this rule should be disabled by default.
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information