Confirmed by looking at the thunderbird.desktop file in thunderbird 3.0.3+nobinonly-0ubuntu1 sourcecode. I believe this could be fixed by adding the "Mail" category to Thunderbird's .desktop file.
** Package changed: software-center (Ubuntu) => thunderbird (Ubuntu) -- Thunderbird is not listed Ubuntu Software Center's "Mail" section https://bugs.launchpad.net/bugs/539375 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
