I get an "HTTPError: Failed to connect to the server, please check your network connection" for the first part (extension.install). Does that not occur for you?

I get an "HTTPError: Failed to connect to the server, please check your network connection" for the first part (extension.install). Does that not occur for you? Edit: Ah, it's using a broken SSL cert (chain is broken). Going to the URL manually and accepting the break works. Edit 2: The verification code doesn't work.