Mozilla's Thunderbird mail client just hasn't enjoyed the same level of stardom as its Firefox cousin. Their developer must be feeling this discrepancy more than most, as the company has confirmed plans to take the organization out of active Thunderbird development. The shift is officially being spun as an adaptation that lets the Foundation center its energy on Firefox OS and the usual browser plans, but when Mozilla proper will only be handling bug fixes and security updates for a client that's "not a priority," we'd say it's putting Thunderbird on ice. Accordingly, leaked details from TechCrunch show Mozilla moving some of the team out of the project at some point; any new features will have to come from the community, which suggests the future upgrade schedule will be more than a bit unpredictable. The writing is on the wall soon enough that existing owners could have food for thought well before a final strategy is due in early September.