Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
 thunderbird-globalmenu : Depends: thunderbird (= 17.0.7+build1-0ubuntu0.12.04.1) but 1:24.0+build1-0ubuntu0.12.04.1 is installed
 thunderbird-gnome-support : Depends: thunderbird (= 17.0.7+build1-0ubuntu0.12.04.1) but 1:24.0+build1-0ubuntu0.12.04.1 is installed
 thunderbird-locale-en : Depends: thunderbird (< 17.0.7+build1-0ubuntu0.12.04.1.1~) but 1:24.0+build1-0ubuntu0.12.04.1 is installed
E: Unmet dependencies. Try using -f.