We are thrilled to share an important development milestone for Thunderbird 114: Firefox Sync is up and running! 🎉

Email, Calendar, and Contact syncing works without issue so far.

We still have work to do, but we're looking forward to making Firefox Sync available through Thunderbird Beta in a few months.

(By the time it hits Beta, we should be syncing most of your Thunderbird settings, too.)

You'll never lose your Thunderbird profile again!