If you happen to be a Thunderbird user (of which I am), you may know about the calendar plugin, Lightning. What you may not know, however, is that it is possible to add Google Calendar to that plugin, with both read and write access. That’s right, out of the box, Lightning can only give you read access to that Google calendar. If you want to make additions or changes to Calendars or tasks, from within Thunderbird, you have to take a few extra steps.

I want to walk you through the process of setting up a read/write Google Calendar on Thunderbird. I will assume you already have Thunderbird installed. I will demonstrate these steps on the Linux platform (Elementary OS), but the process is platform independent.

Necessary plugins

There are two plugins that must be installed:

Install both of these plugins, from within Thunderbird (Menu button | Plugins | See all and then search for Lightning and then Provider for Google. Click Add to Thunderbird and then, when prompted, restart the app).

Once these have been installed, and Thunderbird restarted, you’re ready to configure.

Adding a Google Calendar

Open up the Lightning calendar tab (click on the Lightning icon in the top right corner of the Thunderbird window). Right-click a blank spot in the Calendar pane (left side of the window) and click New Calendar. In the resulting window (Figure A), click On the Network and then click Next.

Figure A

In the Locate your calendar window (Figure B), select Google Calendar, and click Next.

Figure B

You will then be prompted to enter the email address associated with the Google account that contains the calendar to be added. Enter that and type Next. The resulting window is the standard Google signin screen, where you’ll enter your email address, password, and (if applicable–and it should be applicable–because you should be using two-factor authentication), your two-factor authentication code. Finish that signin process and then click ALLOW to give Provider for Google access to your calendars and tasks. Once you click ALLOW, you will be taken back to the Create New Calendar wizard, where you can then select the calendars (associated with that Google account) you want to include (Figure C).

Figure C

After you’ve selected your calendars, Click Next and then Finish. You’re done. The necessary Google Calendars have been added with both read and write access from within Thunderbird.

That’s all there is to it

Congratulations, your Google Calendar is ready for action. With the help of these two plugins, you can now add, delete, and edit events and tasks on your Google Calendar.