Firefox's new IM, privacy features are worth a look

There's a lot going on with Firefox. Two new versions of the browser debuted in just two days; one's ready to go, and the other, more interesting one is still in beta.The finished version, Firefox 41, offers a number of tweaks, but its main claim to fame is an enhanced instant messaging (IM) feature. Firefox 42 is all about making it harder for sites to track people who visit them.One of the best things about the Mozilla Foundation, and its Firefox browser, is the "openness;" the beta version is