14.04lightningthunderbird
I attempted to install The Lightning plugin for Thunderbird. I do this by going to Tools -> Add-ons. I search for Lightning and click "Add to Thunderbird". Then I get a popup asking me if I want to open or save this .xpi file. If I click open, then Thunderbird opens a new email address with the .xpi file attached. If I click save, then try to double click it, it again opens as an email in Thunderbird. How do I install this dang thing?!
I attached two screenshots for clarification.
The lightning extension is now available from the repositories for 11.04 (natty), 11.10 (oneiric) and 12.04 (precise)
By installing xul-ext-lightning thunderbird will have a calendar available to add events etc.
sudo apt-get install xul-ext-lightning
Note - you may be warned about installing the add-on when launching thunderbird up-to-three times. Each time, tick the box to install the add-on and click the Restart Thunderbird button.
Right now there is no feature to open the lighting directly using command line. But mozilla provides an option to open the sunbird client.
There is bug filed for the same. But unfortunately the bug timeline is not active.
We can open an .ics file directly using Evolution, KOrganizer or Calendar. But it is sad that Ubuntu default mail client is unable to add the .ics directly to the calendar system.
Best Answer
After download .xpi file, open Thunderbird.
Open the Add-ons Manager ( Tools -> Add-ons )
Just drag the
.xpifile from nautilus, and drop it in the Add-ons Manager, then it should start installing.