I found this solution, which worked for me.
Forgot to record the exact source, so cannot provide a link nor
attribute the original poster. Sorry.
Only copied the text instructions on what needs to be done.
Solution to Lightning on Thunderbird 60:
On this link you will see that Thunderbird
On 10/29/18 6:06 AM, Dr. Heiko Pollmeier wrote:
Gruß zuvor / Greetings first!
After I upgraded xubuntu from 16.04 LTS to 18.04 LTS there was
automatically also a new Version of thunderbird (60.2) installed.
With this new version of thunderbird the calendar extension lightning
doesnt work
Gruß zuvor / Greetings first!
After I upgraded xubuntu from 16.04 LTS to 18.04 LTS there was
automatically also a new Version of thunderbird (60.2) installed.
With this new version of thunderbird the calendar extension lightning
doesnt work anymore.
How can I go back to version 59.2 , where
