It was about 1.25 Mb in size and that may have been an issue. I tried twice and each time it said the file failed to import. Unfortunately this import function did not go off perfectly. Select the ics file you saved, and import it to the Google Calendar you wish it to be in. Essentially in Google Calendar go to the Setting gear icon, Settings, and Import Export. And the next step is to import that ics file to Google Calendar. Just use the Thunderbird, Events and Tasks, Export function. I also determined that it is possible to export my existing Lightning calendar in ics format. It is very simple and unlike the Provider for Google Calendar it actually works with the Telus G-Suite Google Calendar. It adds a button to Thunderbird that opens a tab within Thunderbird that is essentially a Google Calendar.

However, nothing I have tried allows me to connect the Google Calendar in the Telus G-Suite account to Thunderbird.Īfter considerable research I found there is a new (February 2020) add on called Open Google Calendar.

I have been able to link a pure test Google Calendar to my Thunderbird with the Provider add on. I have come to the conclusion there is some incompatibility between Thunderbird/Lightning and the Provider for Google Calendar when you have a Google account that is provided with the Telus G-Suite. Well I think I have come to a resolution to my problem with this forced conversion from Telus mail to Google Mail.

Thunderbird google tasks