Indeed, as Web-based email services skyrocket in popularity, it's not entirely surprising to see Mozilla make this move.

Still, as a longtime user of Thunderbird, I can't help but feel a little sad. I hope that some passionate fans out there will pick up the project and keep it vibrant, but Baker doesn't sound entirely confident that that will happen.

Who knows? Maybe we'll even see maker Canonical step in, as at least one observer has .

In any case, Mozilla is interested in any feedback, particularly from potential developers interested in picking the project up. It aims to share a final plan of action in early September, Piacentino says. I'll let you know if I hear any significant news before that.