Google Chat in Gmail does not work in 5.0.3 (OS X 10.11)
When using Tor Browser 5.0.3 on OS X 10.11, I am unable to use the chat feature inside Gmail.
The page says I have to sign in before I start talking with friends, but signing in makes no difference.
Below the "Sign in"-button is the following text: "If you block third-party cookies, please add hangouts.google.com and talkgadget.google.com to the exception list."