For some reason, my calendar tab in preferences has disappeared and now I have no calendar.
Additional System Details
- User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.1 Safari/605.1.15
What OS are you using? What version of Thunderbird are you using?
Under 'Addons' what version of Lightning are you using? Are you using 'Provider for google Calendar' ? If yes, what version ?
Modified by Toad-Hall