The path to bringing you a great email experience on Android devices begins with K-9 Mail, which joined the Thunderbird product family earlier this year. As we work towards a modern redesign of desktop Thunderbird, we’re also working towards improving K-9 Mail as it begins its transition to Thunderbird mobile!

Today, we announced our detailed plans for Thunderbird on mobile. We also welcomed the open-source Android email client K-9 Mail to the Thunderbird family. Below, you’ll find an evolving list of frequently asked questions about this collaboration and our future plans.

Open-source Android email app K-9 Mail has joined forces with the Thunderbird project, signaling the beginning of a long-term vision to deliver an outstanding Thunderbird mobile experience.