Google is testing a new browser extension that will be able to encrypt Gmail messages sent to and from Google Chrome, making it harder for someone to read them. While email encryption software isn't new, and Google already offers an encrypted connection for Gmail (shown as https on the address bar), the new service would encrypt the message content. Google said it hoped the plug-in would make the process of encryption more accessible and therefore more widely used. Encryption software tools like PGP and GnuPG are freely available but are cumbersome for consumers. Google's plug-in, is called End-to-End, promising uninterrupted protection of data travelling between two parties.

http://www.smh.com.au/digital-life/consumer-security/google-testing-software-to-take-email-encryption-to-the-masses-20140605-zry0e.html