Tools menu which will open up Google Calendar in a new tab.
*** Version Compatibility ***
Thunderbird 65 and Thunderbird 60
If this project help you reduce time, feel free to send any amount through paypal : https://www.paypal.me/emmanuelrkr and/or write a review.
On first use you should see the Google Calendar login page. When you login you
will be prompted by a notification bar which can save your username and password
for the site.
This password can be removed from the Security -> Passwords section of your preferences.
you must add an exception for https://calendar.google.com
(A simple exception for the entire google.com domain does NOT work).
It's a fork of repository archived : https://github.com/clarkbw/google-calendar-tab but compatible with Thunderbird Version 60.* and Thunderbird Version 65.*