Rated 5 out of 5 stars

This is a great add-on. It works well with emails, calendars, and contacts. Unfortunately, the Teams integration does not work well. I can access the chat interface, but I cannot join or start a meeting. The session just closes suddenly. I am using Ubuntu 25.10. I tried it with the Snap and DEB packages, too, but the result was the same.

Hi, thanks for your nice review! I'm happy that you find the Owl useful.

Yes, the Teams integration is just a nice goodie that we added, but we're aware that it doesn't work well with all meetings. That's why we don't advertize it anywhere. If you find it useful, e.g. for chat, then good. If not, you can just ignore it.

Rated 5 out of 5 stars

The test version 1.4.5.1b1 works well for me in order to fix the "Office365 OWA authentication windows staying open" issue. Thanks Team for your prompt fix and hard work, well done !

This review is for a previous version of the add-on (1.4.5.1).  This user has 2 previous reviews of this add-on.

Rated 5 out of 5 stars

I have since yesterday the same problem with the authentification. And if I close outlook manually I get the message" registration window closed too early"

This review is for a previous version of the add-on (1.4.5). 

Hi Holger, thanks for your kind review and note. We are currently working on the problem, but need to gather more information, because it's working fine in our test accounts. We need to find out what makes the difference. If you haven't done so already, could you please write to our support, with reference to your review here, and let us know the details of your account? Thank you very much for your patience!

UPDATE: We have a fix that works for most users. While the update in the Thunderbird review, you can install it from https://www.beonex.com/owl/owl-test.xpi
Install in Thunderbird Addons | Extensions | menu (Wheel icon) | Install from file...

Rated 5 out of 5 stars

Same problem. Office365 OWA authentication windows is staying open again. Unable to receive or send messages from Thunderbird. I have latest version (1.4.5) of OWL. My e-mail still works on my iPhone.

This review is for a previous version of the add-on (1.4.5). 

Hey Marti, thank you for your nice review.

We will look into it with development.

When you manually close the authentication window, does login fail or work? Could you please send us more information, to our customer support email address? Please include the email address that you try to use with Owl, what your the browser address for your company's OWA webmail. In your email, please refer to this review and tell support that I asked you to contact them.

UPDATE: We have a fix that works for most users. While the update in the Thunderbird review, you can install it from https://www.beonex.com/owl/owl-test.xpi
Install in Thunderbird Addons | Extensions | menu (Wheel icon) | Install from file...

Rated 5 out of 5 stars

I love the Owl, but Office365 OWA authentication windows is staying open again. Microsoft changed the auth again... I have latest version (1.4.5)

This review is for a previous version of the add-on (1.4.5). 

Hey Josip! Thanks for the review.

When you manually close the authentication window, does login fail or work? Can you use Owl after or not?

Can you send us details to customer support, please? Like your email address that you try to use with Owl, and the browser address of your company's OWA webmail. Please tell our support that I asked you to send this info, so that they route the information properly.

UPDATE: We have a fix that works for most users. While the update in the Thunderbird review, you can install it from https://www.beonex.com/owl/owl-test.xpi
Install in Thunderbird Addons | Extensions | menu (Wheel icon) | Install from file...

Rated 5 out of 5 stars

Love it. Thanks for making an extension that is compatible with jwpub.org eas.

This review is for a previous version of the add-on (1.4.4). 

Rated 3 out of 5 stars

Good when it works, but has been unreliable in recent months with login issues. Developers didn't respond to my email asking about an issue I was having either, where new tabs kept opening for Outlook accounts every time Thunderbird checked my Outlook account.

This review is for a previous version of the add-on (1.4.4). 

Beardy Foxy, I'm sorry that our support didn't answer you. We try to help users, on a best-effort basis.

There were problems in recent months, because Microsoft changed the authentication system on their end. Additionally, they did it peace-meal-wise, which meant we had to adapt multiple times.

The latest version of Owl 1.4.4 should work now, which was released 3 weeks ago. It is working for our other users, according to what we know. Are you still seeing issues with that version? If so, please do reach out to support again, and describe *in detail* what you do, what happens, etc., so that we can look at it.

Rated 5 out of 5 stars

After update to version 1.4.4 login process of OWL is again very reliable even to the Oultook.com accounts. Thanks!!!

This review is for a previous version of the add-on (1.4.4). 

Rated 5 out of 5 stars

Sehr guter Support, schnelle Hilfe bei Problemen, Updates werden schnell umgesetzt. Vielen Dank

This review is for a previous version of the add-on (1.4.2).  This user has a previous review of this add-on.

Rated 5 out of 5 stars

Much better than Outlook. Very good support.

This review is for a previous version of the add-on (1.4.1.1). 

Rated 5 out of 5 stars

I've been their customer for 6+ years and they have never failed me when M$ broke something.

This review is for a previous version of the add-on (1.4.1.1). 

Rated 5 out of 5 stars

immediate help when "in trouble" - excellent!

This review is for a previous version of the add-on (1.4.1.1). 

Rated 5 out of 5 stars

I've been using Owl for three years and recently encountered an authentication issue with Outlook365. I reached out to support via email, and my issue was resolved quickly. It's a very nice app with excellent support!

This review is for a previous version of the add-on (1.4.1.1). 

Rated 5 out of 5 stars

Very nice add-on. Very fast and helpful support. Thank you very much! Update 1.4.1.1 solved all problems for me, even the old one with the shared mailboxes.

This review is for a previous version of the add-on (1.4.1.1). 

Rated 5 out of 5 stars

*Update: Problem fixed just one day later. Really nice!

This review is for a previous version of the add-on (1.4.1). 

Hi, Microsoft rolled out new servers on Office365, which broke login. The new Owl version 1.4.1.1 fixes it.

UPDATE: Thanks for updating your rating. We appreciate that. :-)

Rated 5 out of 5 stars

Works perfectly, just go to the extension settings, and click on the wrench. Lets me use my School email without them enabling thunderbird in ms365

This review is for a previous version of the add-on (1.4.0.1). 

Rated 4 out of 5 stars

It works well for emails but doesn't support the office365 calendar.

This review is for a previous version of the add-on (1.4.0.1). 

The Office365 calendar works for many of our customers, but your situation may vary.

Rated 1 out of 5 stars

This add-on does not show half of my mail folders and its display speed is very slow. It is as if it is frozen. This add-on seems to be bad at handling large mail folders and deep hierarchies.

This review is for a previous version of the add-on (1.4.0.1). 

Is this immediately after setup? Did you wait until the initial sync is finished? This may take a few hours.

Rated 4 out of 5 stars

I have the problem, that when I want to open an email from a shared mailbox I get the error "The specified object was not found in the store., the store id provided isn't an id of an item" Otherwise I am really happy with this plugin.

This review is for a previous version of the add-on (1.3.8.1). 

Rated 5 out of 5 stars

I had a problem after TB security update 128.9.2 : it was not possible to read attachments. I posted a claim and in less than 24 hours OWL support solved the issue. So thanks and 5 star rating !

This review is for a previous version of the add-on (1.3.7).  This user has a previous review of this add-on.