Yes. It’s True. Public Wifi can be dangerous if you don’t use it securely. Unsecured connections make it possible for anonymous attacker track your surfing. If you want to use Gmail in a public Wifi :

If you go to the default google mail page – http://gmail.google.com you will be redirected to a secure site to log in, but will then be redirected to an unencrypted site for emailing. This makes you a potential risk for anyone who might be eavesdropping on the network.

via FriedBeef
Simply type an ’s’ at the http ID like this: https://gmail.google.com (and bookmark the URL) and you will be encrypted with SSL throughout your entire email session.

Ok Friends! Be safe.