Rated 5 out of 5 stars

The developer won't be happy about this, but to test compatibility with Thunderbird v139, I edited the "manifest.json" file in the *.xpi file (in the ActiveSync extension *.xpi file, too) to reflect a max version of 139.*.

It works! Beautifully! So, I don't think it will be difficult to make it compatible with v139+

Rated 4 out of 5 stars

A must have TB add-on. Please update this app to make it compatible with TB 139.0 on Windows 64bit. Thanks!

This user has a previous review of this add-on.

Rated 5 out of 5 stars

Only had this add-on for a hot second (with the Exchange add-on-add-on), but I was going mad trying to sync a professional 365 calendar where admins had set sharing to no details out of org. So far, it was easy to set up and did exactly what I wanted. <3

Rated 5 out of 5 stars

Wenn es funktioniert dann sehr gut, aber ab Thunderbird-Version 136.0 funktioniert es wieder nicht!
TB-Sync Version 4.11

Nachtrag vom 2025-03-19:
Es funktioniert wieder, daher wieder 5*. Danke für die schnelle Reaktion!

This review is for a previous version of the add-on (4.11). 

Rated 1 out of 5 stars

Me too it started to fail for the last weeks. Always causes "not responding" trying to dismiss reminders. Will have to uninstall.

This review is for a previous version of the add-on (4.11). 

Keeping up with Microsoft has become difficult. We will remove support for all Microsoft services altogether, to not set wrong expectations to our users. Thanks for your feedback.

Rated 3 out of 5 stars

Always causes "not responding" when syncing, and can't not sync in tray.

This review is for a previous version of the add-on (4.11). 

Rated 4 out of 5 stars

Thanks a lot for this great little sync tool / family of tools!

It's a great productivity feature, and it would be great if Thunderbird would offer it by default.

...and from what I understood Thunderbird should do so from Version 128, natively, but at least for me this is not the case or I still don't find the settings / instructions to let me sync my calenders. If anyone has a how-to, thanks a lot in advance!

For now, I'm very thankful that you updated TB Sync to work again with TB128 - really a relieve!

I only stumple upon random synchronization/login issues, most likely the same as Petr Vones reported here on June 23, 2024 and created bug 725 for. Happy new year to everyone!

This review is for a previous version of the add-on (4.11). 

Rated 3 out of 5 stars

The app does the trick. However I was searching for another way than just adding an external calendar to TB since it doesn't handle categories/labels not well. At least not the colours. This app sadly doesn't do this neither.

This review is for a previous version of the add-on (4.11). 

Rated 4 out of 5 stars

Would have a LOT more users if the setup of Google-4-TbSync was easier. Google-4-TbSync is an extension that TbSync needs to do its thing . It's not the developer's fault; it's the hoops Google forces users through to use a 3rd party add-ons. I'm an ex-programmer & it took a while even for me. You want to go slowly & not dig yourself a hole. Google-4-TbSync's directions are about 85% complete. And Google indicates on one screen that that screen is soon going to change, so Google-4-TbSync's directions will also have to be updated (hopefully). It's the price we pay for security these days.

Anyway, once fully installed, TbSync is running fine. I used to maintain two address books: Google Contacts & Thunderbird contacts. No more.

Note that you set "Read Only" mode when you eventually get around to configuring the account you want to sync. Don't waste time looking for a TbSync or Google-4-TbSync "options" page. It pops up when you specify the account you're going to sync (towards the end of everything else you have to do). The version of TbSync that I downloaded had it set by default, anyway.

This review is for a previous version of the add-on (4.11). 

Rated 1 out of 5 stars

DO BACKUPS!

I didn't notice that my calendar lost synchronization for about a month and when I tried to resynchronize my whole calendar disappeared and all not synchronized entries were lost.

EDIT: synchronization of the calendar only works if I go into the extension setting and manually re-synchronize. This is literally unusable for the calendar.

This review is for a previous version of the add-on (4.11). 

Rated 5 out of 5 stars

Works well on TB 128.2.1. Thanks for the update!

This review is for a previous version of the add-on (4.11). 

Rated 5 out of 5 stars

What a relief! Now working fine with Tb 128.1 esr.
Thank you so much for fixing this.

This review is for a previous version of the add-on (4.11).  This user has a previous review of this add-on.

Rated 5 out of 5 stars

Thank you!
4.11 is working with TB 128

This review is for a previous version of the add-on (4.11).  This user has 2 previous reviews of this add-on.

Rated 3 out of 5 stars

Toll wenn es funktioniert. Bin gespannt wie lange es dauert bis ein Update für die aktuelle TB-Version zur Verfügung steht

This review is for a previous version of the add-on (4.8). 

Rated 3 out of 5 stars

Still not adapted to Thunderbird 128.

This review is for a previous version of the add-on (4.8). 

Rated 5 out of 5 stars

very good product but not compatible with last TB 128.0.1

This review is for a previous version of the add-on (4.8). 

Rated 5 out of 5 stars

Love it, but not compatible with 128.0.1esr (64-bit)

This review is for a previous version of the add-on (4.8). 

Rated 5 out of 5 stars

This plugin shall be TB included...

This review is for a previous version of the add-on (4.8).  This user has a previous review of this add-on.

Rated 4 out of 5 stars

Klappt meistens gut mit dem Telekom E-Mail-Center und Web Dav.

This review is for a previous version of the add-on (4.8). 

Rated 1 out of 5 stars

Ne semble plus marcher… snif. Impossible de synchroniser mon Nextcloud avec Thunderbird

This review is for a previous version of the add-on (4.8).