It took the folks over at Twitter long enough to beef up their security. The micro-blogging service has just announced that they will be offering an optional “always on” HTTPS setting to its users. If you constantly use Twitter on unsecured internet connections like free public WiFi, and you have qualms about people using tools like Firesheep to steal your login details, you should be enabling the option in your Twitter settings page. Take note that enabling the HTTPS setting doesn’t force mobile browsers, so if you’re using the Twitter website on your phone, head over to https://mobile.twitter.com/ for the time being. If you use a third-party client, check its settings to ensure that it offers HTTPS.