This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

I added a calendar to Thunderbird & used it for some time - after last updates the calendar has disappeared, how do I get it back?

  • 3 cavab
  • 1 has this problem
  • 6 views
  • Last reply by Figgis

more options

I am on Version 46.0.1 of Thunderbird and lost my calendar in the past week or so. I entered reminders for birthdays and appointments and am peed off that I have lost it all & may have to start again. If I have to recreate it I will leave it as a stand alone calendar as I don't wish to lose all my information again.

Is there a way of reinstating my calendar and all the data I entered?

I am on Version 46.0.1 of Thunderbird and lost my calendar in the past week or so. I entered reminders for birthdays and appointments and am peed off that I have lost it all & may have to start again. If I have to recreate it I will leave it as a stand alone calendar as I don't wish to lose all my information again. Is there a way of reinstating my calendar and all the data I entered?

Chosen solution

This will probably fix your problem.

  1. On the toolbar then  Add-ons
  2. Select extensions and remove the Lightning (calendar) addon
  3. Restart Thunderbird
  4. Reinstall Lightning/calendar addon - if you need the functionality

Please tell us, does that help?

Note
  1. If you can't get to Add-ons, then start Thunderbird in safe mode by holding the shift key while starting Thunderbird.
  2. If you still can't get to Add-ons, simply reinstall Thunderbird from http://getthunderbird.com/
Read this answer in context 👍 0

All Replies (3)

more options

I have found a Google calendar that contains some of the data so how do I add it to Thunderbird so it is always on screen with my email summary and list of folders.

more options

Seçilmiş Həll

This will probably fix your problem.

  1. On the toolbar then  Add-ons
  2. Select extensions and remove the Lightning (calendar) addon
  3. Restart Thunderbird
  4. Reinstall Lightning/calendar addon - if you need the functionality

Please tell us, does that help?

Note
  1. If you can't get to Add-ons, then start Thunderbird in safe mode by holding the shift key while starting Thunderbird.
  2. If you still can't get to Add-ons, simply reinstall Thunderbird from http://getthunderbird.com/
more options

Thank you Matt. Lightning had gone from my Add-ons & when I installed it my calendar magically appeared along with a few reminders. I don't know what caused it to disappear as Thunderbird is the most reliable of applications. I never have a problem with it.

Cheers