When you have several calendars opened in Lightning, it’s a bit of a pain to double check everytime that the correct one is selected… If you have the same issue, here is the solution :
- Open Tools > Options > Advanced tab, and click Config Editor button.
- In the « Filter: » box enter « calendar.registry »
- Find a .calendar-main-default key – it will be set to true
- Other calendars either won’t have a .calendar-main-default key (or it will be set to false)
- Right click on the value of the .calendar-main-default key that goes with the calendar that currently shows up by default in new events to toggle the value to false
- Click on the .calendar-main-in-composite key that goes with the calendar you want as default
- Right click on the same key and choose Copy Name from the menu that appears.
- Now right click on the key again and select New > Boolean
- Paste the name of the key and Use the backspace key to erase « in-composite » and type « default »
- Click OK and Choose true and click OK
- Now exit out of Thunderbird and restart
Credit goes to: http://neocodesoftware.blogspot.be/2013/09/how-to-change-default-calendar-for-new.html
Initial solution was posted on the « get satisfaction » site that handled the support for some Mozilla products. You have to love using a « proprietary » support when it closes down! Of course, no redirection, no read only, the info is lost…