Rated 4 out of 5 stars

yazan: Brosstis tarih: Kas. 8, 2025 ·

Please update the application to make it compatible with the latest version of Thunderbird. Thank you.

Rated 5 out of 5 stars

yazan: mrp_x tarih: Kas. 7, 2025 ·

Can sync my @outlook.com calendar now! Thanks!

Rated 4 out of 5 stars

yazan: Firefox user 1f0a77 tarih: Haz. 1, 2025 ·

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

This review is for a previous version of the add-on (4.16).  This user has a previous review of this add-on.

Rated 5 out of 5 stars

yazan: Hroethvitnir tarih: Nisan 15, 2025 ·

Basically the same review as for Tbsync, but as of setting it up 5 minutes ago, I'm a big fan. Had no sync issues, it was easy to select calendars (including tasks!): attempting to work around a huge org's protocols blocking non-Office software was killing me.

This review is for a previous version of the add-on (4.16). 

Rated 3 out of 5 stars

yazan: Ralph Koehler tarih: Mart 6, 2025 ·

with office 365 address book works, calender freezes at roughly have of the entries and thunderbird crashes then

This review is for a previous version of the add-on (4.12). 

Rated 5 out of 5 stars

yazan: David tarih: Şub. 19, 2025 ·

It also works with the wecom.work (企业微信) server.

This review is for a previous version of the add-on (4.12). 

Rated 5 out of 5 stars

yazan: Firefox user 54b924 tarih: Ara. 9, 2024 ·

Ich war sehr zufrieden, bis es nicht mehr funktionierte mit Server Fehler 500. Die Lösung war, die Cookies des entsprechenden Server zu löschen (Einstellungen - Cookies)

This review is for a previous version of the add-on (4.12).  This user has a previous review of this add-on.

Rated 3 out of 5 stars

yazan: leadercon tarih: Ağu. 15, 2024 ·

Toll wenn es funktioniert. Bin gespannt wie lange es dauert bis ein Update zur Verfügung steht.

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

Rated 4 out of 5 stars

yazan: Alf-Melmak tarih: Ağu. 13, 2024 ·

War bisher hervorragend, leider funktioniert es mit Thunderbird Version 128 nicht mehr.

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

Rated 5 out of 5 stars

yazan: don_pepe tarih: Ağu. 8, 2024 ·

One of the most important add-ons - thank you!
Should be an integrated part of Thunderbird!

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

Rated 5 out of 5 stars

yazan: Stefano Caselli tarih: Haz. 22, 2024 ·

initial configuration is complicated, but after that it works perfectly.

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

Rated 1 out of 5 stars

yazan: Sebastain tarih: Mayıs 23, 2024 ·

It doesn't work. Trying to login via Automatic configuration - there is HTTP error 401. If I try to login via Office 365 account - there is error - Server doesn't provide info about ActiveSync versions. Useless...

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

Rated 4 out of 5 stars

yazan: mbaum tarih: Mayıs 8, 2024 ·

Works fine so far. But is there a way to also sync calendar colors or somehow change them individually?

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

Rated 2 out of 5 stars

yazan: Tizian tarih: Nisan 22, 2024 ·

Unfortunately, the mail is not yet available via this provider. It's a pity that only contacts and calendar are synchronised and not the mails as well. Also - when can we expect the implementation of appointment invitations?

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

Rated 4 out of 5 stars

yazan: Maalik_Tarski tarih: Nisan 20, 2024 ·

Apparently this does not work two-way, i.e., events added in Thunderbird are not added to Outlook, the other way works though.

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

Rated 5 out of 5 stars

yazan: Bernd_das_Brot tarih: Oca. 27, 2024 ·

Note on Microsoft Hotmail: The cause of the login problem seems to be that Microsoft Hotmail does not request a username/password anymore to access the calendar. This means: anybody who knows your https://outlook.live.com/owa/calendar/... URL will be able to download your private calendar.
To see it yourself, just add the calendar once more.

Note to the author: Accessing the settings of an existing calendar entry only works the first time, not the second. It seems.

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

Rated 2 out of 5 stars

yazan: ToBo69 tarih: Oca. 25, 2024 ·

Stopped working with Microsoft Outlook account. Also tried OAUTH but it also doesn't work. EAS shows error "Unknown user (HTTP error 404) NS_ERROR_UNKNOWN_HOST"

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

Rated 2 out of 5 stars

yazan: Eurorapp tarih: Oca. 25, 2024 ·

Suddenly doesnt work with Hotmail. It always requests my password but when i enter it, it wants it again. Any issues with Hotmail/ Outlook.com ?

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

yazan: John Bieling (Geliştirici) tarih: Oca. 25, 2024 ·

Looks like Microsoft disabled plain password authentication. Try OAUTH.

Rated 5 out of 5 stars

yazan: Алексей Волков tarih: Eyl. 22, 2023 ·

Отсутствие синхронизации календаря и адресной книги с Microsoft 365 - единственное, что мешало мне использовать Thunderbird. Теперь помех нет.

This review is for a previous version of the add-on (4.7). 

Rated 4 out of 5 stars

yazan: Firefox user 387903 tarih: Ağu. 27, 2023 ·

Used to be great, but after upgrade to thunderbird 115 not working properly on Ubuntu LTS 22.04. It stops when trying to sync calendar entries at 112/205 causing thunderbird and then the whole systemt to freeze completely. The only way to get going again is to reboot the computer.

This review is for a previous version of the add-on (4.7).