Your Ubuntu versions are EOL on the Desktop. Is this problem reproduceable in newer and supported Ubuntu versions?
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/222560 Title: Thunderbird version 2.0.0.23 (20090817) does not start up when Compiz Desktop Effects are installed (Ubuntu 8.04, 9.04, 9.10) Status in “thunderbird” package in Ubuntu: Triaged Bug description: Problem: After installing the Compiz over the new "Desktop Effects"-program , Thunderbird does not start up anymore. Workaround: After disabling Compiz in the "Deskto Effects"-settings, Thunderbird start up just as normal. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/222560/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp