The Thunderbird 3.0 beta is quite usable with Orca. I have been using it for over 6 months now with little trouble. I got it from the Mozilla ppa on launchpad. Just paste the lines below into a file and copy it into /etc/apt/sources.list.d. Be sure to replace jaunty with the version of Ubuntu you are using.
# Mozilla prerelease packages for Ubuntu Jaunty deb http://ppa.launchpad.net/fta/ubuntu jaunty main universe This will give you the latest Thunderbird as well as the latest Firefox prereleases. HTH, Lorenzo -- Nia diligenta kolegaro En laboro paca ne laciĝos, Ĝis la bela sonĝo de l' homaro Por eterna ben' efektiviĝos. --La Espero, himno de Esperanto -- Ubuntu-accessibility mailing list Ubuntu-accessibility@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-accessibility