2.6.1 Not Working on Linux Mint Rated 4 out of 5 stars

After some updates the Calendar no longer worked. As others suggested I downloaded Version 2.6 and manually installed it. Works Great again.
[Linux MInt 15 - Cinnamon 1.8.8, Thunderbird 24.0]

This review is for a previous version of the add-on (2.6.1).