Mozilla might be scaling back its official support of Thunderbird, but it still has love left for those who yearn for more in their e-mail clients than OS developers can give. The newly-released Thunderbird 15 update's most conspicuous change is a deliberate visual harmony with its Firefox cousin: the company wants its apps to have more in common than just a shared name on the About screen. Under the hood, there's now a live chat feature to skip the wait for e-mail, a Do Not Track option for web searches and the choice of using Ubuntu One cloud storage for large attachments. It's hard to know if future Thunderbird releases will be as substantial once the community takes the reins. For now, though, Thunderbird aficionados can relax.