Google Calendar with Thunderbird or Seamonkey

Regardless whether you are using Thunderbird or SeaMonkey, chances are you want to integrate a Google calendar.

Mozilla Thunderbird 5.0 on GNU/Linux
screen shot from Wikipedia

SeaMonkey 2.5 on GNU/Linux
own screen shot, mail client window

The integration is quite simple. The first step is obtaining and installing Lightning, available for both Thunderbird (from this location, shown left) and SeaMonkey (from this location, shown right).

Obtaining lightning

For how to install Add-Ons in Thunderbird see this page; adding them to SeaMonkey is easier, here you just click on them.

While plain Lightning already is a nice calendar it ships with no support for Google Calendar. For this you also need Provider for Google Calendar, again available for both Thunderbird (from this location, shown left) and SeaMonkey (from this location, shown right).

Obtaining provider for Google Calendar

For an explanation on how to configure Lightning to access your Google Calendar, allow me to point you to make use of's “How To: Integrate Google Calendar Into Thunderbird”. Note that while the article explicitly mentions Thunderbird it also applies to SeaMonkey.