Lightning - Calendar

https://addons.mozilla.org/en-us/thunderbird/addon/lightning

Provider for Google Calendar - Google Calendar Sync

https://addons.mozilla.org/en-us/thunderbird/addon/provider-for-google-calendar

Google Contacts - Google Contacts Sync

https://addons.mozilla.org/en-us/thunderbird/addon/google-contacts

http://lazybit.wordpress.com/2008/10/01/thunderbird-lightning-and-google-calendar-bidirectional-sync-ubuntu-64/

Install the Lightning, Google Contacts and Provider for Google Calendar add-ons.

First, set up your Gmail account in Thunderbird.

Install the Google Contacts add-on and it will detect the Gmail account.

Consider a separate Gmail account just for shared contacts.

1. Using a web browser, log into the Google Calendar you want to use in TB
2. Click Settings → Calendar Settings → Calendars
3. Click on the calendar you want to use
4. Right-click + Copy the Private XML URL

In Thunderbird:

File → New → Calendar → On the Network → Google Calendar → Paste the URL in Location

Add credentials and save password.

Edit prefs.js and copy tags from original setup. Tags will sync via IMAP, but won't display unless defined in the exact same way on the additional Thunderbird installations.

cat /home/gcooper/.thunderbird/5smf60l1.default/prefs.js |grep tags

user_pref("mailnews.tags.$label1.color", "#FF0000");
user_pref("mailnews.tags.$label1.tag", "Important");
user_pref("mailnews.tags.$label2.color", "#FF9900");
user_pref("mailnews.tags.$label2.tag", "Work");
user_pref("mailnews.tags.$label3.color", "#009900");
user_pref("mailnews.tags.$label3.tag", "Personal");
user_pref("mailnews.tags.$label4.color", "#3333FF");
user_pref("mailnews.tags.$label4.tag", "To Do");
user_pref("mailnews.tags.$label5.color", "#993399");
user_pref("mailnews.tags.$label5.tag", "Later");
user_pref("mailnews.tags.ahh.color", "#663300");
user_pref("mailnews.tags.ahh.tag", "AHH");
user_pref("mailnews.tags.bsb.color", "#FF9900");
user_pref("mailnews.tags.bsb.tag", "BSB");
user_pref("mailnews.tags.c&-s.color", "#330099");
user_pref("mailnews.tags.c&-s.tag", "C&S");
user_pref("mailnews.tags.cascade.tag", "Cascade");
user_pref("mailnews.tags.durazo.color", "#660000");
user_pref("mailnews.tags.durazo.tag", "Durazo");
user_pref("mailnews.tags.esb.color", "#6633FF");
user_pref("mailnews.tags.esb.tag", "ESB");
user_pref("mailnews.tags.greg's_camera.color", "#FFCC33");
user_pref("mailnews.tags.greg's_camera.tag", "Greg's Camera");
user_pref("mailnews.tags.hac.color", "#FF0000");
user_pref("mailnews.tags.hac.tag", "HAC");
user_pref("mailnews.tags.iasillo.color", "#CC33CC");
user_pref("mailnews.tags.iasillo.tag", "Iasillo");
user_pref("mailnews.tags.jalowski.color", "#006600");
user_pref("mailnews.tags.jalowski.tag", "Jalowski");
user_pref("mailnews.tags.jw.color", "#FF6666");
user_pref("mailnews.tags.jw.tag", "JW");
user_pref("mailnews.tags.lourdes_inc..color", "#33CCFF");
user_pref("mailnews.tags.lourdes_inc..tag", "Lourdes Inc.");
user_pref("mailnews.tags.mer.color", "#663333");
user_pref("mailnews.tags.mer.tag", "MER");
user_pref("mailnews.tags.ntb.color", "#FF0000");
user_pref("mailnews.tags.ntb.tag", "NTB");
user_pref("mailnews.tags.ppmgmt.color", "#003300");
user_pref("mailnews.tags.ppmgmt.tag", "PPMGMT");
user_pref("mailnews.tags.premier_performance.color", "#CC0000");
user_pref("mailnews.tags.premier_performance.tag", "Premier Performance");
user_pref("mailnews.tags.qm.color", "#330099");
user_pref("mailnews.tags.qm.tag", "QM");
user_pref("mailnews.tags.rwg.color", "#666666");
user_pref("mailnews.tags.rwg.tag", "RWG");
user_pref("mailnews.tags.shenkarow.color", "#663366");
user_pref("mailnews.tags.shenkarow.tag", "Shenkarow");