I had the same problem, and I discovered that this was because a locally-installed copy of the Google Provider plugin was installed in addition to the package "xul-ext-gdata-provider". The local version was version 0.13 while the Ubuntu package was at 0.16. However, the local version of a plugin is given priority by Thunderbird, so it was using version 0.13. The solution: click the "Remove" button for the Google Provider plugin and restart Thunderbird. You should now be using the version supplied by your package manager (0.16). You can tell which plugins are provided by the package manager, because they will not have a "Remove" option.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/1032359 Title: Thunderbird no longer displays Google Calendar Status in “thunderbird” package in Ubuntu: Confirmed Bug description: This seems to have been happening since Thunderbird 15.0: Even though I have Lightning (1.7b3) and Provider for Google Calendar (0.13) add- ons installed, and the correct ICS address for my Google Calendar entered, I am unable to see the calendar. This used to work just fine until recently... ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: thunderbird 15.0~b1+build1-0ubuntu1 ProcVersionSignature: Ubuntu 3.5.0-7.7-generic 3.5.0 Uname: Linux 3.5.0-7-generic x86_64 AddonCompatCheckDisabled: False ApportVersion: 2.4-0ubuntu6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: rrohde 2247 F.... pulseaudio BuildID: 20120724152304 Channel: Unavailable CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: No such file or directory Date: Thu Aug 2 15:47:53 2012 ForcedLayersAccel: False IfupdownConfig: auto lo iface lo inet loopback IpRoute: default via 172.25.128.1 dev eth0 proto static 10.42.0.0/24 dev wlan0 proto kernel scope link src 10.42.0.1 metric 9 169.254.0.0/16 dev eth0 scope link metric 1000 172.25.128.0/22 dev eth0 proto kernel scope link src 172.25.129.117 metric 1 NoProfiles: True ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RunningIncompatibleAddons: False SourcePackage: thunderbird UpgradeStatus: No upgrade log present (probably fresh install) WifiSyslog: dmi.bios.date: 02/20/2012 dmi.bios.vendor: Dell Inc. dmi.bios.version: A10 dmi.board.name: 00WW5M dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA10:bd02/20/2012:svnDellInc.:pnDellSystemXPS15Z:pvr:rvnDellInc.:rn00WW5M:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Dell System XPS 15Z dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1032359/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp