Rated 5 out of 5 stars

Good Add-on.
By the way the record limit is 10,000 records.
In my case I have more then 13,000.
I can see only 10,000 adresses in my thundbird.

This review is for a previous version of the add-on (2.0.13). 

Rated 5 out of 5 stars

I hope, the author is alive and he will update this really valuable add-on.

Edit
Glad to hear this, Josh! It seems to be working fine now! Thanks a lot!

This review is for a previous version of the add-on (2.0.13). 

I'm still alive :). Version 3.0.0 should work in TB 57 - 60.

Rated 4 out of 5 stars

Excellent App for many years. But now in the last week (or about) the App no longer syncs with Google contacts. :-(

This review is for a previous version of the add-on (2.0.13). 

Rated 5 out of 5 stars

It works! and is a long awaited add-on. Please go ahead with development.

This review is for a previous version of the add-on (2.0.13). 

Rated 5 out of 5 stars

great addon

but I just discovered every connection is made in http://google
this sensitive data should be https:// exclusive
please how can we change that?

EDIT: yes, I saw it in fiddler or wireshark. thank you for looking into it, will retry soon.

This review is for a previous version of the add-on (2.0.13). 

All communication between the add-on and Google is using https. I even have code that replaces "http:" with "https:" for back when contact IDs sometimes had "http:". Where did you see insecure connections? Did you verify that they are indeed insecure with Wireshark or a similar tool?

If you have any evidence of this happening please provide me with it or at least the URL(s).

PS: Version 3.0 switched to https even for the links to my website for the FAQs and forum.

Rated 3 out of 5 stars

When set “extensions.strictCompatibility” (configuration editor) to “false” then it still doesn't work properly. Settings dialog is transparent so it is hard to confirm changes:
https://bugzilla.mozilla.org/show_bug.cgi?id=1447237

This review is for a previous version of the add-on (2.0.13).  This user has a previous review of this add-on.

This has been fixed in later versions. I don't recommend overriding the compatibility since I set the last supported version to the newest version I tested the add-on with. Override it at your own risk :).

Rated 5 out of 5 stars

Works with TB 6.0 beta
Set “extensions.strictCompatibility” (configuration editor) to “false”

This review is for a previous version of the add-on (2.0.13). 

Rated 5 out of 5 stars

Great add-on, but currently incompatible with TB 60. Please update!

This review is for a previous version of the add-on (2.0.13). 

Rated 4 out of 5 stars

Thank you for this addons .
some details could help us to explore more acuratly our contacts .

***************
count number of contact that exist .

show contacts that they are deleting in synchronization time. and let us to select them , if we think its go wrong .

show contact added recently .

merge contact

and report of some other analysis

This review is for a previous version of the add-on (2.0.13). 

Rated 1 out of 5 stars

Somehow, this add on completely screwed up my Thunderbird Contacts. I had address books / lists in Thunderbird that were not in gmail....so it DELETED THEM when it synced gmail with Thunderbird!!!!

This review is for a previous version of the add-on (2.0.13). 

Rated 5 out of 5 stars

Works since years perfect - but today I had a significant issue! Google after some records claimed that the token expired and needed to be renewed! Issue was not found for hours - then I detected: some records in birthday had value "0"! Eliminating this solved the issue!

This review is for a previous version of the add-on (2.0.13). 

Rated 5 out of 5 stars

A must have to keep the "contacts storm" under control. Set and forget. Works like a charm.

This review is for a previous version of the add-on (2.0.13). 

Rated 5 out of 5 stars

Installed and synced my contacts straight away. No problems at all on thunderbird 52.5.2.
Thanks alot!

This review is for a previous version of the add-on (2.0.13). 

Rated 2 out of 5 stars

it`s alway eat my memory and let thunderbird crash...

This review is for a previous version of the add-on (2.0.13). 

When the add-on is slow or uses a lot of memory it's generally caused by the fragile database format used by the Thunderbird address book, or more rarely by interference of a security program. It's generally best to delete the offending address book and re-sync with a new one when this happens.

Rated 5 out of 5 stars

Спасибоогромное

This review is for a previous version of the add-on (2.0.13). 

Rated 5 out of 5 stars

... and of course I only really noticed it when it was broken briefly recently.

Thanks for all the hard work.

This review is for a previous version of the add-on (2.0.13). 

Rated 1 out of 5 stars

This add-on was incredibly useful for this kind of application but unfortunately, it doesn't work anymore.

This review is for a previous version of the add-on (2.0.12). 

TB 57.0 is still in beta, and if you look at the supported versions, 57.0 was not listed since I hadn't tried it yet. I've supported it for very nearly 10 years now, so I don't always stay ahead of nightlies and beta releases...

I pushed versions 3.0.0a8 and 2.0.13 with the fix. If you're on the beta channel you should get the update soon, otherwise 2.0.13 will be updated whenever it gets reviewed.

Rated 5 out of 5 stars

I really like the extension, and it worked reliably so far. Unfortunately it appears to be broken in TB57.0b1. I raised a support topic in the support forum, but it didn't seem to receive any attention yet. I'd hope the extension will be updated for TB57.

Update
Thanks for the fix. I'm glad to see the add-on is working again in TB57.

This review is for a previous version of the add-on (2.0.12). 

I pushed versions 3.0.0a8 and 2.0.13 with the fix. If you're on the beta channel you should get the update soon, otherwise 2.0.13 will be updated whenever it gets reviewed.

PS: Version 57.0 wasn't listed as a compatible version since I hadn't validated it yet.

Rated 5 out of 5 stars

I have noticed that using this app makes existing address books corrupt. Dragging a contact from one address book to another makes the address books corrupt, and makes other contacts disappear. Maybe for just one address book ok, but if you have multiple address books, be careful.

Edit 5-12-2017: this week I noticed the same behaviour without the add-on, and I created a new profile within Thunderbird. I realized that I have used the profile for years now, and old remnants from the past may have caused the address book behaviour. So far everyhting works fine now :)

This review is for a previous version of the add-on (2.0.12). 

The address book in Thunderbird is extremely buggy and fragile. I try to work around those problems in gContactSync where I can, but sometimes changes in Thunderbird make my workarounds no longer work.

Which versions of Thunderbird and gContactSync were you using? There was a drag and drop problem introduced by a change to TB that wasn't compatible with my address book modifications that I fixed here: https://github.com/jdgeenen/gcontactsync/issues/109

Edit: I highly recommend moving contacts within an address book from Google's interface. Moving them between accounts can be done with Google's export and import. This is far more stable than using Thunderbird.

Rated 5 out of 5 stars

It was a big issue having to retype every e-mail in the address box in a fresh installation. This extension solved this problem :D

This review is for a previous version of the add-on (2.0.12).