Ubuntu Firefox + Thunderbird integration

Just switched to my Kubuntu 7.10 laptop for mobile working.. found that KDE has a bug which means it does not pass on the mailto: clicks via the Default Applications option in System Settings.

Workaround is to create a Firefox user.js with this code in it:

user_pref("network.protocol-handler.external.mailto", "true");
user_pref("network.protocol-handler.app.mailto", "/usr/bin/thunderbird");

This gets it working, although I wish KDE functionality would keep working between releases!