Thunderbird 45 with Lightning is not working Bewertet mit 1 von 5 Sternen

It used to work for years, but now all invitees are removed and it sometimes does not even sync.

Will it be updated?

Can you contact support on this issue? It may also be an issue with Lightning, in that case please write in the support forum there. Often the "Show Calendar Week" extension seems to be the culprit.

OK, but don't work with 45.0 version ? Bewertet mit 3 von 5 Sternen

Do you plan an update ?

Thank you !

This specific extension should be working without problems. If you have an issue with Lightning, please write in the support forum there. Often the "Show Calendar Week" extension seems to be the culprit.

Works great for syncing two Google calendars (work and personal) into one Lightning calendar view Bewertet mit 5 von 5 Sternen

Once I realised that appointments were being set in the "Home" calendar by default, and that this was not what I needed, it all worked smoothly.

When setting an appointment, in the event dialogue there is a "Calendar" drop-down where you choose the calendar in which you want the event to be recorded. I was not paying attention to this; it was set by default to Home, and was therefore not being sent to my Google calendar. This caused me some frustration as I initially thought there was a fault with the synchronisation because the events were not appearing in Google but I then realised there was nothing to sync as I was actually setting them on the local Lightning "Home" calendar only.

For my purposes, I have deleted the "Home" calendar altogether so now all events will at least be recorded in one of my Google calendars if I forget to select one. This works fine for me and I now have an integrated calendar in which I can view and manage my personal as well as my business appointments.

issue with Google Calendar event permissions not carrying over to Thunderbird Bewertet mit 2 von 5 Sternen

We are using a new Google Apps account. In testing, a calendar was made in a master account (we'll call this Account A), so it is the owner, and shared for all within the organization. Events were added and when the Google calendar is added in another email account (Account B) and only has permissions to view the event. Using a browser, there is no ability for Account B to delete the event at all. This is what is supposed to happen. However, after syncing the calendar and the event is visible, when it is deleted from Thunderbird for Account B, it is also then removed from Account A which created it and is the owner of it. This should not be allowed for users. Only the owner. I've checked the forum for other such questions but found nothing. Hoping someone else has also experienced this and found a fix. Added the question to the forum but no answers forthcoming yet. Otherwise, the adding of a calendar and syncing all work as expected.

Thunderbird 38.6.0
Lightning 4.0.6
Provider for Google Calendar 2.7

Calendar Refresh Interval? Bewertet mit 4 von 5 Sternen

Excellent Add-on. Makes Lightning work with Google Calendar.

There seems to be a limitation when setting the Sync Refresh Rate. It cannot be set any faster than once every 30 minutes.

I don't think this is a limitation of Lightning. Seems like it may be a limitation of what the Provider will permit.

Is that correct? Is there some way to customize this?

Many thanks

Item changed on server Bewertet mit 4 von 5 Sternen

Great plug-in, very useful.
I do struggle with what seems to be a bug though: Frequently I get a modal window complaining "This item has recently been changed on the server. Submitting your changes will overwrite the changes made on the server". I am offered to submit or discard my changes, but regardless of my choice the error persists. Is anybody else experiencing this?

Enter correct address ... OS X Bewertet mit 5 von 5 Sternen

I tried to configure Provider for Google calendar on my Thunderbird installation (system OS X El Capitan). When I go thru Create New Calendar -> On the Network -> Google Calendar -> Locate your calendar and type my email address he say I have to enter correct address ... I suppose program expect URL link... so i cannot log when I enter my email address ! and configure it... Please help.

No, the URL is no longer required. Please enter your email address.

Awesome Bewertet mit 5 von 5 Sternen

Makes Thunderbird/Lightning even better!

I hate using Local Calendars and this has fixed it! Thank you so much!

Works great but. Bewertet mit 4 von 5 Sternen

Works great with google calendar BUT repeating events created in Thunderbird do not sync to google. Repeating events created in google sync perfectly back to Thunderbird. Any explanation?

Provider - Unable to install - Unverified Bewertet mit 3 von 5 Sternen

This looks like a great add on. I could really use this but unable to install due to the add on being unverified by Mozilla. Any plan to have it verified?

Works great, minor nits Bewertet mit 5 von 5 Sternen

This add on is a really useful tool. I made a contribution to support it.

Minor complaints:

Under "Create New Calendar -> On the Network -> Google Calendar -> Locate your calendar", it says "Please pick an existing session or enter your email address to create a new session". Most people won't be able to figure out what a "session" means here. Basically, it means enter the email associated with the new Google calendar you're setting up (strictly speaking, you're setting up a new Thunderbird calendar connection to your existing Google Calendar, but whatever)


Hi Ben, thank you very much for the contribution and the suggestion. I agree it would be good to get this technical term out of the extension and it is easy to describe differently. It may take a bit though, because the extensions is translated into many languages.


Love it, best calender app around Bewertet mit 5 von 5 Sternen

It works perfectly reading and writing to my Google calendars. With Lightning it's the best calendar app around.
- great you can scroll down smoothly, not just a month at a time, which is only partly implemented in Apple's calendar and not at all in others
- you can see the time on the event, again can't on many others
- can print out a month's events

Thank you! keep it up

Very helpful guide - Worked for me! Bewertet mit 5 von 5 Sternen

The guide is a tiny bit outdated I guess, because a couple of the final steps were different. But it was not hard to guess the right selection. All in all very straightforward. It took me about 5min. to adjust the settings. Thank you!

Slow and unresponsive Bewertet mit 1 von 5 Sternen

After over a year the add-on still slows down Thunderbird to almost stand still.
After each update it requires to authenticate each calendar again. Which is quite annoying.

Dieser Benutzer hat eine ältere Bewertung zu diesem Add-on.

Love it, but ... Bewertet mit 2 von 5 Sternen

... unfortunately makes my Thunderbird almost unusably slow. This was an issued about a year ago, which I had been able to fix by installing a pre-release, but now the problem came back. I wish this could be alleviated.

Diese Bewertung wurde für eine vorherige Version des Add-ons (1.0.4) abgegeben.  Dieser Benutzer hat 2 ältere Bewertungen zu diesem Add-on.

moved half my meetings by an hour, made them public Bewertet mit 1 von 5 Sternen

I had high hopes, but after installing this, half my meetings were changed as follows:

* moved forward in time by an hour;
* calendar-default visibility settings were replaced with "public";
* repeating calendar entries were reconfigured as a series of exceptions.

Diese Bewertung wurde für eine vorherige Version des Add-ons (1.0.4) abgegeben. 

I'd appreciate if you could contact support on this issue. The time moved forward should be a display issue fixed in 2.7, the repeating entries thing only happens if you make changes to occurrences and is related to Lightning, and the visibility thing sounds strange to me.

Marvellous, thanks a lot Bewertet mit 5 von 5 Sternen

Works fine! One of the best calendar add-ons because win 10 calendar does not (yet?) show past events, in the android world it is, as far as I know, only Calengoo which presents all (!) events from the Google calendar.
Downloaded Thunderbird, Lightning and thirdly this "Provider for Google Calendar".
I'm not thee expert in all these things, just followed the instructions here:

Result: Thunderbird loads fairly quickly, only the first search-through took 30 sec with five years of events (average one entry a day). The whole thing took me five minutes.

Diese Bewertung wurde für eine vorherige Version des Add-ons (1.0.4) abgegeben. 

Only 1000 first events sync - Would be better to start with the future events than older ones Bewertet mit 4 von 5 Sternen

Thanks for this module
You wrote on October 5, 2015 ("Wrong" - response to "unusable with large numbers of events"
I have the same problem : the sync of 1000 events does the sync of events in my agenda from 2007 to 2011. But nothing after 2011, the 1000 first events are in TB but not the current ones.

You said "There is an advanced option to change the batch size" : how is it possible to use it ? I would set 3000 then.

You said also "Once the initial synchronization is done, the synchronization token is saved locally and all future synchronizations are incremental: only changed events are downloaded. So, let me guess, this is exactly how synchronization software should work? Yes, I thought so."

Then as you guess "the case is probably that the initial sync is not complete, hence the token is not saved on shutdown and next time you start up, it attempts to start over. Please give it some time." How can I know if the initial sync is complete or not ? In the bottom bar, there is written "synchroniszation finished at 19:18:14, but my last event is june 20th, 2011.

Thanks a lot

Diese Bewertung wurde für eine vorherige Version des Add-ons (1.0.4) abgegeben. 

Extremely slow Bewertet mit 1 von 5 Sternen

This add-on makes the calender extremely slow to load and to browse through.

Diese Bewertung wurde für eine vorherige Version des Add-ons (1.0.4) abgegeben. 

Severe slowdown Bewertet mit 5 von 5 Sternen

Update: unsubscribing birthday calendar helped tremendously. I've updated my rating to 4/5 stars. It would have been 5/5 if it wasn't for such an work-around.


I'm all of the sudden experiencing severe slowdowns in TB. I've been using this add-on for quiet some time and have been happy with it, but since yesterday, TB now needs up to 2 minutes or so, because I can actually use it. While in TB and writing a mail, I occasionally experience slowdowns here as well. Could be syncing related.

I've tried disabling all calendars, but that didn't help anything. Only by disabling this add-on I can access TB normally.

Diese Bewertung wurde für eine vorherige Version des Add-ons (1.0.4) abgegeben.