Rated 4 out of 5 stars

Phillip, version 1.0 doesn't provide the offline caching option. That was a killer feature for me. Are there any plans to add support for that?

This review is for a previous version of the add-on (1.0.2). 

Actually, it does. The Provider exclusively uses the offline caching option and doesn't allow disabling it. This is why there is no option for it.

Rated 4 out of 5 stars

Really useful add-on! Been using it for years. And it seems that performance and stability has improved over the years.

Regarding problems with 1.0.X versions. Version 1.0.2 seems to make the calenders working normally again.

I'm using a master password, and in the 1.0.X version I get a bunch of master-password login dialogs (one for each calender) when starting Thunderbird - annoying! Previously I only got two, which was acceptable.

This review is for a previous version of the add-on (1.0.2). 

Please take a look at the Startupmaster extension. This is mostly a platform issue, which will likely be solved in a later version of Thunderbird.

Rated 5 out of 5 stars

Thanks again Philipp!

This review is for a previous version of the add-on (1.0.2). 

Rated 3 out of 5 stars

Another workaround for new versions.

0. Close Thunderbird
1. Log into https://console.developers.google.com
2. Press "Create Project", then "Create", and wait a minute until it's finished.
3. Click "APIS & auth", "APIs"
4. Find and enable "Calendar API" and "Tasks API"
5. Fill required fields in "Consent screen"
6. Open "Credentials", "Oauth", "Create new Client ID"
7. Choose "Installed application", then "Create Client ID".
8. Copy "CLIENT ID" and "CLIENT SECRET" values (will need them later)
9. Search on your hard disk for file with name "gdataSession.jsm" and open it
10. At the end of the file, remove everything after "Before you spend time trying to find out what this means, please note"
11. Append to the file this:

this.OAUTH_BASE_URI = "https://accounts.google.com/o/";
this.OAUTH_CLIENT_ID = "PUT YOUR CLIENT ID HERE";
this.OAUTH_CLIENT_SECRET = "PUT YOUR CLIENT SECRET HERE";
this.OAUTH_SCOPE = "https://www.googleapis.com/auth/calendar https://www.googleapis.com/auth/tasks";

12. Start Thunderbird and see if calendars work.
13. If not, try to add a new google calendar as usually ("new calendar"->"network"->"google calendar"). The app should ask you for your google login and password. Agree to everything ;)
14. You may need to re-enable all google calendars (just double click on them and click "Turn on this calendar".

Enjoy!

This review is for a previous version of the add-on (1.0.2). 

Again, this is likely against some terms of service so I will not support this. If you want to go down this route I'd suggest trying the original provider again in a month or so.

Rated 5 out of 5 stars

The workaround below (revert to 0.32 tempo) works. If you're encountering issues with access to the other than the primary calendar in your account you need to go to your google calendar settings page and get the funky Calendar ID from there, it looks like blablahblah34242@group.calendar.google.com .

That last step tripped me up until I linked throught eh CalDEV google help page to the page that referenced this need.

Bless you Philipp, you have the patience of a saint. Your hard work is very much appreciated.

This review is for a previous version of the add-on (1.0.2). 

Rated 1 out of 5 stars

Absolutely loved this until recently. It keeps going down. Today, same problem as other reviewer - says Provider is out of date. Would be willing to upgrade rating and send donation if this can become stable, otherwise it's useless. Last week I had to delete calendars and Provider, reconfigure on Google Calendar, reinstall calendars and Provider, multiple attempts, before getting everything to work again. Beyond annoying.

This review is for a previous version of the add-on (1.0.2). 

Rated 2 out of 5 stars

If I enable the birthday calendar with the new 1.0.1/1.0.2 version, Thunderbird freezes for five seconds every time I change the week or change the view or anything in the calendar, making it essentially unusable. But the new version apparently conflicts with ThunderBirthday, which was working fine.

This review is for a previous version of the add-on (1.0.2). 

Rated 5 out of 5 stars

My rating is for past and, hopefully, future performance of this add-on. Reading between the lines, it seems to me that the issue might be that Google's quota for sync requests has changed. So, whereas at one time, it might have been possible to upgrade Provider for Google Calendar (PGC) and painlessly re-sync all calendar items, now it's impossible to re-sync an entire calendar, and PGC is, in effect, broken by the upgrade. If my guesswork is anywhere near the truth, would it make sense to make PGC sync only a small portion of the calendar initially--maybe current month and one month prior and ahead. Then, sync the remainder gradually over time? If a Google policy change has resulted in 1.0.2 being broken, it seems unlikely to me that a server-side fix is forthcoming. But you know Google better than I do...

This review is for a previous version of the add-on (1.0.2). 

Only syncing a small part will make it really hard to figure out which events have been synced and which haven't, and also more requests in the long run. In theory things should calm down soon: once everyone has done their initial sync, all future syncs are incremental and will only require one request. I've bumped the results per request by a large number in 1.0.2, so even with a full sync it should be less requests.

Rated 1 out of 5 stars

I've been using Provider and Lightning for at least 2 years. Never a problem until the recent updates. 1st I was getting annoying Google Logins everytime I opened Thunderbird. Then the calender stopped syncing. That was fixed by removing old calenders (that were setup a long time ago) and re-installing. That worked great until this latest 1.0.2 update came. Asking for login again. Now quota exceeded. I've about had it.

This review is for a previous version of the add-on (1.0.2). 

Rated 5 out of 5 stars

For your question, I have been using this for over 5 years and this is the first time I ever remember having a issue. This is a great addon and worth a contribution to the developer.

FYI, I do not believe there is even an alternative that is close to this.

This review is for a previous version of the add-on (1.0.2).  This user has a previous review of this add-on.

Rated 5 out of 5 stars

Agree with the previous comments - great add-on, easily worth $10. If you question that, go price Outlook (also known as look-out). I'm in for $10.

This review is for a previous version of the add-on (1.0.2). 

Rated 4 out of 5 stars

While it has been frustrating, I also appreciate this add on. I went back to the previous version for now but also donated $10 to the cause. I am sure it will be fixed soon.

This review is for a previous version of the add-on (1.0.2). 

Rated 5 out of 5 stars

This add-on deserves 5 stars as it has been doing exactly what it is supposed to. Some update that broke current version doesn't trash the whole thing, and no doubt the author will fix it.

This review is for a previous version of the add-on (1.0.2). 

Rated 5 out of 5 stars

The only way I've found to make this work is the following:
1. Install Provider 0.32.
2. Restart Thunderbird.
3. Go to Add-ons Manager, click on Provider and then on "More". Scroll down and disable automatic updates.

Version 0.32 works perfectly and that's why I'm giving you 5 stars, plus it's my way to show my support to the project. For now, I'll just stick with that version. Unfortunately, I'm unable to get versions 1.0.1 and 1.0.2 to work.

This review is for a previous version of the add-on (1.0.2). 

Rated 5 out of 5 stars

My Google calendar is know working with read/write access.

I tried creating calendars with and without this add-on, using the links provided by Google and they didn't work. Then I read Paulo Costa's message below, and it did. So I'm repeating it!

-------------------------------------------------
For anyone saying that Lighting doesn't support Google Calendar anymore or that Provider for Google Calendar now doesn't work, see https://blog.mozilla.org/calendar/2013/09/google-is-changing-the-location-url-of-their-caldav-calendars/. The method described there for adding a writable Google Calendar totally works.
-------------------------------------------
The relevant paragraph is the one titled "How do I set up the new calendar?"

P.S. I've given the add-on 5 stars because it worked great for the last 4 years, but I'm removing it now...

This review is for a previous version of the add-on (1.0.2). 

Rated 5 out of 5 stars

Seriously, developer IS trying to fix the problems that came after an update of mozilla ! Why give him the 1 star ratings because it is not working currently after the update ? He should get 5 stars for effort alone ! The addon is great. Temporary not working but I am convinced it will work again in a few hours or days.

Thanks in advance for your great effort ! Appreciated.

(Also just tried the 1.0.2 and with me it also is currently not working)

This review is for a previous version of the add-on (1.0.2). 

Rated 1 out of 5 stars

I install once again but it's still same problem.

This review is for a previous version of the add-on (1.0.2). 

Rated 1 out of 5 stars

1.0.2 sill not working! :(

This review is for a previous version of the add-on (1.0.2). 

Rated 1 out of 5 stars

I found the fix
1. delete/remove this add-on
2. use the CalDAV method described here
https://blog.mozilla.org/calendar/2013/09/google-is-changing-the-location-url-of-their-caldav-calendars/

2a. Open the new calendar dialog (File → New → Calendar)
2b. Add a new remote calendar (On the Network → CalDAV)
As a location enter the following, be sure to replace your email address(your-email-address):

https://apidata.googleusercontent.com/caldav/v2/your-email-address/events

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 1 out of 5 stars

We have the same problem. We can see old events, but we can't add new one or edit old events. We can only add event on google calendar (gmail) and then sync thunderbird calendar. How can we fix it?

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