New in 2023 - We have added Thunderbird Lightning sync to our line of products. For speed, ease-of-use, and value, buy CompanionLink! Full money-back guarantee!

Full Guarantee

Sync Thunderbird Lighting Calendar, Contacts and Tasks with Office 365, Outlook, Google, iCloud, Android and iPhone

Easy Automatic Two-Way Sync from Thunderbird Calendar to your sync destination. Free phone support. Guaranteed!

Sync ThunderBird Calendar, Contacts and Tasks

With CompanionLink Express, it is easy and fast to sync from Thunderbird Lighting Calendar, Contacts and Tasks to:

  • Outlook, Office 355, Outlook-dot-com, Exchange, IMAP and POP3 folders
  • Apple iCloud Contacts and Calendar (Direct Thunderbird to iCloud - no Google)
  • USB Sync to Android and iPhone - using DejaOffice App you download from the App Store.
  • Wi-Fi Sync to Android and iPhone - using DejaOffice App you download from the App Store.
  • DejaCloud internet based sync. DejaCloud is free if you have under 500 records.
  • Monday CRM, Salesforce, Zoho - requires CompanionLink Pro

Thunderbird Sync Setup Guide

For Windows: Configure CompanionLink Express Sync with
Thunderbird Lightning Calendar, Contacts and Tasks
CompanionLink Express
Average User Rating:
Average rating: 4.84 out of 5 based on 648 reviews.
Free 14 day trial. Price $19.95 3-Month Sub - $99.95 One-time License.

CompanionLink Express Features

  1. Sync Calendar, Contacts, Tasks
  2. Accurate Free/Busy and Invitation Status
  3. Accurate time zones
  4. Works with iCloud, Exchange, IMAP, and Pop3 folders
  5. Outlook 2007 and higher
  6. Works with any Google Account - Does not require Google Apps
  7. One purchase for 3 PCs; work, home and laptop
  8. 90-Day Money Back Guarantee
  9. USA Based Telephone Technical Support

Supported Operating Systems

Our product works only on Windows OS - not Mac or Linus

Our Business Model

CompanionLink charges a low fee for a perpetual license to our product. While we understand that Thunderbird and other Mozilla products are created by Mozilla foundation, the foundation has not shared revenue with CompanionLink.

Portable License

Your license is for you, not your PC. When you buy a new computer, you do not need to purchase a new license. With CompanionLink you use your email address to register the software on a new computer.

US based company

CompanionLink is located in Portland, Oregon. Our servers are based in New Jersey to take advantage of proximity to international fiber network. Our servers are high technology and really fast!

RunStart and Premium Support

With CompanionLink you can call us at (503)243-5200 for support, Monday through Friday, 7am-3:30pm Pacific Time. For those with special needs, use our RunStart Service gives you a one-time hands on session with a top tier technician. Our technician will log into your computer, set up the sync, and ensure you are completely satisfied with the solution. If you want this service regularly, use Premium Support for a full year and up to five service tickets.

About Thunderbird Lightning

Lightning Calendar offers a wealth of features designed to empower users in managing their schedules with finesse. Create and edit events, set reminders, invite attendees, and effortlessly manage recurring events – Lightning Calendar has it all. With its intuitive interface and customizable views, users can effortlessly navigate their schedules and gain a holistic overview of their commitments.

The integration of tasks and to-dos is yet another standout feature of Lightning Calendar. Seamlessly combining tasks with calendar events allows users to streamline their workflow and maintain an organized approach to productivity. Stay on top of your schedule and never miss a beat.

Lightning Calendar owes its success to the vibrant Mozilla community, which actively contributes to its development. With bug reports, improvement suggestions, and even custom extensions, the community's involvement ensures that Lightning Calendar remains adaptable and responsive to the evolving needs of Thunderbird users.

In a nutshell, Lightning Calendar is the driving force behind Mozilla Thunderbird's productivity revolution. By seamlessly integrating a robust calendar and task management system, Thunderbird becomes a force to be reckoned with. Powered by cutting-edge technologies and built on open standards, Lightning Calendar enables users to maximize their productivity and efficiency, while Thunderbird solidifies its position as a go-to platform for seamless email and productivity management.

Thunderbird data we sync

  • Calendar
    • All calendar event details
    • Recurring and all-day events
    • Alarms/reminders
    • Accepted meeting invites (with list of attendees)
    • Multiple Thunderbird calendars (Requires CompanionLink Pro)
  • Contacts
    • Names, addresses, phone numbers, email addresses
    • Contact notes
  • Tasks
    • Thunderbird Tasks
Consistently OUTSTANDING Service, Performance
By Ann G.
on Sep 18, 2023
CompanionLink for Outlook
I am so impressed with the OUTSTANDING customer support I have received from CompanionLink, not to mention how pleased I am with how the programs perform seamlessly. Wayland has helped me a few times, and, like the rest of the team, is absolutely AWESOME. Finding a company whose support is this consistently good is hard, not to mention the flawless performance of their programs. I am so happy that I found CompanionLink.
Great for 10+years until I went to iPhone
By Barbara
on Sep 16, 2023
CompanionLink for Outlook
I just upgraded my CompanionLink -- its been great. But its not the same experience using it with iPhone. The appointment alarms that I came to rely on are now gone because the alarm settings and sounds are poor and barely audiable. All was so perfect with my Android, but I needed the iPhone for car navigation. This works poorly with iPhone, in my opinion. Very disappointed.
CompanionLink just works!
By Pete S
on Aug 10, 2023
CompanionLink for Outlook
I've used CompanionLink for Outlook for what seems like a decade now and for synchronization of CompanionLink for Android with Outlook running on my Windows PC it's great and has been flawless, even with over 3000 calendar entries and 400 contacts.
Tiffany Rocks
By Steve
on Apr 17, 2023
CompanionLink for Outlook
Tiffany helped me work through a problem with sync - she was great!
Works great!
By Bruno B.
on Mar 8, 2023
CompanionLink for Outlook
Best software I ever purchased.
One of the Best Programs on My Computer.!
By John K.
on Feb 10, 2023
CompanionLink for Outlook
CompanionLink is without a doubt one of the most important programs on my computer. It syncs all of my contacts (847 today) and my calendar events (116 today) flawlessly, efforlessly and instantly between Outlook on my desktop and laptop and also as a stand alone on my Android phone. In most cases it does it automatically! And whenever there is a problem (and it's always something I've done) their customer service responds faster than any support I have dealt with and always with the right solutions. You absolutly cannot go wrong with this program.

Last modified: Sep 17, 2023 1:53 pm