Inside a terminal can you try running mozilla-thunderbird -profilemanager and creating a new profile to check whether or not it's an issue with your profile?
To get a debug package you'll need to add a deb-src line to your sources.list. Add this line to /etc/apt/sources.list: deb-src http://security.ubuntu.com/ubuntu dapper-security main restricted then run apt-get update, beforegetting the source package. -- Thunderbird crashes with segfault https://launchpad.net/bugs/54663 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
