This easy step-by-step guide will help you set up Thunderbird to sync your Calendar items.


Before you begin, you must download and install Lightning by Mozilla. You can download it here:


Once you have downloaded and saved it to your hard drive, you must open Thunderbird, then open Add-ons from the Tools menu. From the options button next to the Search all add-ons field, select Install Add-on From File... and locate the downloaded add-on. Once you've installed Lightning, you are ready to sync your Calendar with CalDAV.



Step 1. Login to your webmail with your full email address in the Username field and your Password


Step 2. To sync your Calendar items, click on Calendar in the App Launcher


Step 3. Click the down arrow next to the calendar you wish to sync and select Share Calendar



Step 4. Right click on the Mozilla Thunderbird link at the bottom of the popup window, and click Copy link address


Step 5. Open Thunderbird

  • Click the File menu (top left)

  • Click Account Settings, and the Account Settings... dialog box will appear

  • Click Account Settings within the dialog box


Step 6. The Account Settings window will open

  • Click on the Internet Calendars tab

  • Click New

  • Paste the website address copied in step 4

  • Click Add

Congratulations, you have synced your Calendar in Outlook 2010!