What I think of the correct solution: The debian-alternatives system is better than the KDE one, but there shouldn´t exist 2 systems. So:
1. Thunderbird should use the browser set by the alternatives system 2. Threre should be a littel GUI to set options for that system 3. The KDE settings to set a web browser and email Program (and whatever is managed by debian-alternatives) should be removed, instead the debian-alternatives settings should be used. I don´t know in how far the ubuntu team modifies KDE but this should be possible and is IMHO the most user-friendly and best solution -- Thunderbird uses konqueror as web browser https://launchpad.net/bugs/52670 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs