Rated 5 out of 5 stars

by Jan Miller on June 16, 2026 ·

Todo bien hasta la versión TB 150, ahora con la 151 dejó de funcionar

Rated 5 out of 5 stars

by HwK15 on June 16, 2026 ·

when a new version for version 151?

Rated 5 out of 5 stars

by ThewMat on April 9, 2026 ·

完璧だ！　perfect!

This review is for a previous version of the add-on (7.1). 

Rated 5 out of 5 stars

by Firefox user 974bb9 on March 29, 2026 ·

@minor: Thanks for the tip! The add-on is working perfectly again after changing the version number in the "manifest.json" :-)

This review is for a previous version of the add-on (7.1). 

Rated 5 out of 5 stars

by Grzegorz Podgórski on March 26, 2026 ·

Dear Oleksandr,
I very like this extension, but in the current version of Thunderbird 149 64bit, the add-on has stopped working.
There is a chance for solutions for this?
I would appreciate it if you could fix it!

This review is for a previous version of the add-on (7.1).  This user has 10 previous reviews of this add-on.

Rated 5 out of 5 stars

by minor on Feb. 12, 2026 ·

I changed "strict_max_version" in src/manifest.json and it worked.

This review is for a previous version of the add-on (7.1). 

Rated 1 out of 5 stars

by Dtouzeau on Feb. 5, 2026 ·

Not compatible with thunderbird 147.0.1

This review is for a previous version of the add-on (7.1). 

Rated 4 out of 5 stars

by José_Madrid on Dec. 11, 2025 ·

El complemento es muy útil, pero es necesaria la actualización para que funcione con Thunderbird 145 y posteriores.

This review is for a previous version of the add-on (7.1). 

Rated 5 out of 5 stars

by thaold on Sept. 29, 2025 ·

Please update for Outlook attached file .msg

This review is for a previous version of the add-on (7.0). 

Rated 2 out of 5 stars

by Whynot_OK on Sept. 24, 2025 ·

Ich denke es ist von Thunderbird gewollt, dass dieses Add on nicht mehr funktioniert. Aber nativ kriegen die es auch nicht auf die Reihe.

This review is for a previous version of the add-on (7.0). 

Rated 4 out of 5 stars

by designhaus on Sept. 20, 2025 ·

Bitte wieder für die aktuelle Thunderbird Version 143 aktualisieren.

Vielen Dank!

This review is for a previous version of the add-on (7.0). 

Rated 2 out of 5 stars

by Ramdhani on Sept. 4, 2025 ·

Please update to be compatible with tb 142.0 version, tks

This review is for a previous version of the add-on (7.0). 

Rated 5 out of 5 stars

by milew on July 18, 2025 ·

In the current version of Thunderbird 140.0.1 ESR 64bit, the add-on has stopped working. Do you have any solutions for this?

This review is for a previous version of the add-on (6.7). 

Rated 5 out of 5 stars

by Weetos on June 26, 2025 ·

Love this extension, Thanks for the hard work and for keeping this alive :D

I've been having issues lately though with outlook mails from one specific sender - for some reason LookOut fails to show what's inside the winmail.dat ( I can share emails that may help reproduce this issue if needed) - Experiencing this issue using TB128 ESR, TB136 Mac and PC

Please help :)

This review is for a previous version of the add-on (6.6). 

Rated 5 out of 5 stars

by Celes on March 21, 2025 ·

Very usefull extension, must be updated for TB 136,0,1 please

This review is for a previous version of the add-on (6.4). 

Rated 5 out of 5 stars

by Martinezio on March 19, 2025 ·

Tested on TB 136 - works fine.
Just fixed the manifest.json file inside xpi package.

This review is for a previous version of the add-on (6.4).  This user has a previous review of this add-on.

Rated 5 out of 5 stars

by Aragil on March 16, 2025 ·

Will there be a Version that works with Thunderbird 136 ff.?

This review is for a previous version of the add-on (6.4). 

Rated 5 out of 5 stars

by Lorenz on March 8, 2025 ·

Hello,

when will the add-on for Thunderbird 136.* be compatible?

Greetings, Lorenz

This review is for a previous version of the add-on (6.4). 

Rated 5 out of 5 stars

by NXTwoThou on Feb. 6, 2025 ·

So thankful this exists still. I hadn't gotten a winmail.dat in a long time and had to go look at an old email to find I couldn't view it anymore since the original extension was long since unavailable.

To those reading, you can always try to run on newer versions of Thunderbird by renaming the .XPI as .ZIP, extracting the manifest.json someplace. Editing manifest.json and changing strict_max_version to be past whatever version of Thunderbird you currently have. One of those "worth a shot" and today worked great on my beta version of Thunderbird.

This review is for a previous version of the add-on (6.4). 

Rated 5 out of 5 stars

by schlusenbach on July 14, 2024 ·

Love it! Now waiting for a Version for TB128+

This review is for a previous version of the add-on (6.2).