When you connect to the internet, the data going back and forth to Google, Facebook, email account etc. may be easily intercepted and stolen. To avoid this, there is a security method called HTTPS: that encrypts your traffic from your browser to the server (i.e. facebook) that you are connecting to. There is no extra cost in using HTTPS. You should always use HTTPS when available. Free browser extensions make this easier.
HTTPS-EVERYWHERE is a Firefox extension and KB SSL Enforcer is a Chrome extensions that encrypts your web communications automatically with a number of major websites (and more are coming). Many sites on the web offer some limited support for encryption over HTTPS, but make it difficult to use. For instance, they may default to unencrypted HTTP, or fill encrypted pages with links that go back to the unencrypted site. The HTTPS Everywhere extension fixes these problems by rewriting all requests to these sites to HTTPS.
Sites that are currently supported :
- Google Search
- WordPress.com blogs
- The New York Times
- and many other sites!