Rated 5 out of 5 stars

I had been struggling with the same issue. This is THE solution what was written by an other user (gegmar) on 15th of Oktober 2014:

"Since I read a lot of ratings complaining about issues with Google's Authentication service, I want to share my solution to this problem:

After updating to version 1.0.1 my calendars stopped syncing. So I first uninstalled and reinstalled the addon and then deleted my google password from the thunderbirds known-password-list (Extras->Settings->Security->Passwords->saved Passwords).

Then - after deleting all remained old google calendars - i added a new google calendar. The Addon asks for Authentication and then provides a list of your available calendars.

I hope it helps some of you with this issue. I really like this Addon because I have not found any other solution, that allows me to write to an online calendar (very useful for calendars used on muliple devices)"

This review is for a previous version of the add-on (1.0.1). 

Rated 5 out of 5 stars

I love it.

Here is a bug.

Preferences->Security->Passwords->User master password

This conflicts with the addon and makes thunderbird almost unusable. I had to remove the add-on, remove the master password and reinstall the add-on.

This review is for a previous version of the add-on (1.0.1).  This user has a previous review of this add-on.

Rated 3 out of 5 stars

yes... i have! Is conflick with ThunderBirthDay plugin when is active i can't put e-mail adress as google calendar.

This review is for a previous version of the add-on (1.0.1).  This user has a previous review of this add-on.

Rated 3 out of 5 stars

Hello,
the new events are synchronised with google but the old one disappeared. So I export them from google agenda and reimport in thunderbird. All is OK now. I think is due to a change in the google agenda API.
So I continue with the module.

This review is for a previous version of the add-on (1.0.1). 

Rated 4 out of 5 stars

I had to remove this and lightning, update TB and reinstall. Lightning is installed, but this gives the message that something wrong happened, try again, when I try to download.

Since I cant even download, I cant use any support form or mail to the developer...

Can you please help? Please send help via nummerskivan(at)gmail.com too, since I can't find it here if there comes to many new refs.

This review is for a previous version of the add-on (1.0.1). 

Rated 5 out of 5 stars

Hello All,

I was also searching solution after Google change the API URL and after this module comes some problem.

I build up one own cloud server (for example synology not soo expensive) which is support as well CalDaV ( and another very useful services), and very easy to set up. Now it is working well without google all of my calendars storing now there. With TB the synchronising working without problem.

So if anybody else would like to change from google calender, I offer this solution.

For publishing the calendar there is also some easy solution for example phpcalendar or the CMS system (drupal, wordpress) mainly giving module for publish calendars.

András

This review is for a previous version of the add-on (1.0.1). 

Rated 5 out of 5 stars

Works again - but Offline-Support not available

Thank your for the great add-on. The new versions works again on my computer. But the proble is, that the offline-support of the calenders are not available. Is theire a possibility to get it back?

This review is for a previous version of the add-on (1.0.1). 

Rated 5 out of 5 stars

bye bye google!

Thank you for this great addon, which I used until google changed their API.

Instead of reconfiguring all our computers to point to the new Google URL, we decided to switch to a self-hosted caldav server (like baikal, owncloud or radicale...).

This review is for a previous version of the add-on (1.0.1). 

Rated 5 out of 5 stars

Like all happy campers I have made a small donation.

This review is for a previous version of the add-on (1.0.1). 

Rated 5 out of 5 stars

Follow gegmar's instructions dated October, 15. Thanks, gegmar!

This review is for a previous version of the add-on (1.0.1).  This user has 2 previous reviews of this add-on.

Rated 5 out of 5 stars

Hallo Philipp,

ich kann nur sagen Daumen hoch und vielen Dank für das schnelle reagieren.

Hast deine 5 Sterne verdient. Bei mir läuft wieder alles wie es soll.

LG

This review is for a previous version of the add-on (1.0.1).  This user has a previous review of this add-on.

Rated 4 out of 5 stars

After Google changed their API, the addon had some problems. However it seems that the developer has worked really fast, fixing the bugs related to the new API.
I have been using this addon for more that a year, and it works most of the time really great with all my google calendars (I blame googles old API, when there were problems).
Happy to see that the developer keeps working on the project.

This review is for a previous version of the add-on (1.0.1). 

Rated 4 out of 5 stars

Had nothing but trouble with ver. 1.01 - kept losing sync with Google calendar, events disappearing in Thunderbird, repeating event parameters garbled, etc. Rolling back to ver. 0.32 fixed everything.

This review is for a previous version of the add-on (1.0.1). 

Rated 5 out of 5 stars

This evening it works... but no update.. Maybe Google has something done at their site ?

Great work !

edit : It doesn't work again ...

This review is for a previous version of the add-on (1.0.1). 

Rated 5 out of 5 stars

The Addon is going to work!
It's now eleven o clock, Dutch time.

This review is for a previous version of the add-on (1.0.1). 

Rated 5 out of 5 stars

Since I read a lot of ratings complaining about issues with Google's Authentication service, I want to share my solution to this problem:

After updating to version 1.0.1 my calendars stopped syncing. So I first uninstalled and reinstalled the addon and then deleted my google password from the thunderbirds known-password-list (Extras->Settings->Security->Passwords->saved Passwords).

Then - after deleting all remained old google calendars - i added a new google calendar. The Addon asks for Authentication and then provides a list of your available calendars.

I hope it helps some of you with this issue. I really like this Addon because I have not found any other solution, that allows me to write to an online calendar (very useful for calendars used on muliple devices)

This review is for a previous version of the add-on (1.0.1). 

Rated 5 out of 5 stars

Reverted back to Ver: 31.1.2 and this add-on is working again. CalDAV option can't compete with this one.

This review is for a previous version of the add-on (1.0.1).  This user has a previous review of this add-on.

Rated 3 out of 5 stars

Its disappointing to see that this software is not working. But the nearest possible alternative i found is ThunderCal 1.1 which helps you open your gmail calendar in thunderbird just as Lightning does. Hope this helps

This review is for a previous version of the add-on (1.0.1). 

Rated 4 out of 5 stars

After updating Thunderbird to 31.2 today, I also updated Provider for Google calendar to 1.01 and Lightning was updated to 3.3.1. At this point, upon TB startup, I was prompted for what looks like password for my Google Calendar, however, the popup window was all blank - couldn't enter anything.

After doing some research, I found that some people had better luck with reverting back to version 0.32, so I did the same, and my calendar works now.

I am running on Windows 7 Home Premium (up-to-date).

This review is for a previous version of the add-on (1.0.1). 

Rated 3 out of 5 stars

The post from PeterR on October 15, 2014 pointed me to the solution to use CalDAV.

Got it working again. Thanks PeterR.
https://support.google.com/calendar/answer/99358?hl=nl
Unfortunately this page is in Dutch, changing hl=nl to hl=en does not provide the same info. The English page has much less information than the Dutch page.
So here is a translated page.
https://translate.google.nl/translate?sl=nl&tl=en&js=y&prev=_t&hl=nl&ie=UTF-8&u=https%3A%2F%2Fsupport.google.com%2Fcalendar%2Fanswer%2F99358%3Fhl%3Dnl&edit-text=

Scroll down to "Enable Google Calendar Mozilla Sunbird" and follow instructions.

This review is for a previous version of the add-on (1.0.1).