Firefox 13 was released on 06/05/2012

Firefox Notes - Desktop

Firefox Has a Redesigned Home Page and New Tab Experience That Make Browsing the Web Faster and Easier | The Mozilla Blog

Thunderbird 13 was released on 06/05/2012

Thunderbird Release Notes

New Thunderbird release: Simplify your email experience! | The Mozilla Thunderbird Blog

SeaMonkey 2.10 was released on 06/06/2012

Hope they show up in the updates repository soon.