Came across this some time ago but now seems an appropriate time to mention it, especially with the on-going ‘mania’ with web security.
HTTPS Everywhere is a Firefox and Chrome extension that encrypts your communications with many major websites, making your browsing more secure. It is with a one-click installation,which can seriously increase your security on over 1,400 web sites by encrypting your connection.
Many sites, like Gmail (and Facebook, with caveats) have options that let you browse with HTTPS always turned on, but the HTTPS Everywhere extension makes this simpler. Instead of turning it on for individual sites, HTTPS Everywhere will automatically routes all your data through a secure connection on any of its 1,400 supported web sites, keeping your information safe and away from prying eyes—in short, it's an extension everyone should have installed.
Essentially a win win situation. Unfortunately not available for IE, Safari and other browsers except Firefox and Chrome.