Thunderbird Update breaks Google Calendar provider on Ubuntu 11.10

The latest upgrade to thunderbird seems to break the calendar connection to google calendar.

The error is "Provider for Google Calendar is incompatible with Thunderbird 8". The simple fix is to edit

/usr/share/xul-ext/gdata-provider install.rdf

 and change to

<em:maxVersion>2.0</em:maxVersion>

 This seems to work for me (at least I can see my calendar again)