


Now you need to open your Webmail and go to the Calendar section. On the left side in the calendar list click right and click on “New Calendar” Under Add-ons –> Extensions you need to have Lightning installed as follows If not please install it from the app repository. Newer versions of Thunderbird have the Lightning app just installed. Lightning is a integrated calendar app in Thunderbird. See the following tutorial:Īfter the colleague has granted the access to his calendar, you must still subscribe to the calendar, see the following tutorial: To summarise the answer to my own question it sounds like calendar functionality should "just be there" in a fresh Thunderbird installation on Windows, and also if the correct packages are installed on Linux.If you want to include calendars of colleagues, this colleagues must first give the approval for you. I suspect that what I should have done (at the very start) on Linux was to install that package and have that available to all users and not install an add-on (for just one user), which caused problems when (a) that add-on stopped being supported any more and (b) I tried to get at a calendar from another user account. sequence described at may have - it didn't work on Windows when I tried it but I didn't try on Linux). Yes - that did work for the new user account added above on Linux, although it didn't work for the existing user account from which calendar functionality "disappeared" (although the reset/remove etc. Apparently, the standard Ubuntu repository didn't include Lightning in TB 60, so you have to install the 'package': The support article re update issues has a section for Linux users.
