In order to sync via CalDAV, you must first install the "Lightning" add-on for Thunderbird.
Installing the Lightning add-on
1.) Click the Tools menu.
2.) Click Add-ons.
3.) In the search box, search for "Lightning".
4.) Click Install.
5.) Once install is complete, restart Thunderbird when prompted.
NOTE: Lightning must be installed in order to use CalDAV
Syncing Thunderbird with CalDAV calendar
Click Create a new calendar.
Enter the Location as https://mail.hover.com/webdav
You must now choose the following for the new calendar:
- Which email account to sync to
Syncing Thunderbird with CardDAV contacts
To use CardDAV to sync your Hover contacts with Thunderbird you need the following:
A recent version of the Thunderbird email client
The SOGo Connector Thunderbird extension (which you can download here: http://www.sogo.nu/english/downloads/frontends.html )
First thing you need to do is install the extension in Thunderbird. Download the most recent version to your local system first.
Open Thunderbird and select Tools > Add-ons.
Enter the following info:
Name: A custom name identifying the new remote address book
URL: https://mail.hover.com/caldav/youremailaddress (where "youremailaddress" is your full Hover email address)
Thunderbird will ask you for the user name and password of your Hover email.
For User Name, enter your full email address.
For Password, enter your Hover email password.
Then click OK.
Your Hover contacts have now been synchronized with your Thunderbird.