With the advent of Firefox add-ons like Firesheep that make hijacking browser sessions easy for even the most novice users, it is more necessary than ever to take action to use the most secure methods of transmitting/receiving data possible. One good tip is to only visit sites that use a secure connection (denoted by “https” as the protocol rather than “http”). A great tool that will automatically do this for you for major sites it this add-on, HTTPS-Everywhere. Another tip is just to change your Facebook, Twitter, Hotmail, etc. bookmarks to https in the URL to make sure that you are always connecting securely through your own bookmarks, but if you click on a “share on Facebook” or similar link at a website you are still subject to the site owner’s link design as to which server you are taken to. Better to use this add-on to be safe, but do understand that there are limitations that might cause problems. These are generally the result of some services (like Google Images or Facebook Chat) not being available over HTTPS so some sites may not look/feel exactly the same as their non-secure counterparts.