Redirect to HTTPS is an extension for Opera 11that encrypts your web communication with several major websites that support secure HTTPS connection, but may not default to secure, for example Facebook, Twitter, Wikipedia, etc. This Opera extension automatically redirects you to the secure version of web pages.

Redirect to HTTPS can also modify the links on pages you open to make them point directly to the HTTPS version.

Supported websites are Facebook, Gmail, Google, Hotmail, New York Times, Twitter, Wikipedia, etc.

You can Install Redirect to HTTPS from Opera add-on gallery. Similar add-on for Firefox.