Rated 2 out of 5 stars

by LetsGo67 on Feb. 15, 2026 ·

L'extension ne fonctionne pas correctement, a chaque ouverture, tout les logins sont re demandés pour autoriser et mettre à jour les existantes... certains fournisseur sont ignorés (free, sfr et d'autres) ne sont pas inclus... vraiment dommage...

J'utilise Keepass 2 et non la XC

by kkapsner (Developer) on Feb. 17, 2026 ·

Please check https://github.com/kkapsner/keepassxc-mail/issues/83#issuecomment-2558158831 for the startup problems.

For the ignored entries you should look into the console (Ctrl + Shift + J) and search for "got credential request". There you should see what it is searching for and you can adjust your database entries accordingly (you might have to disable the protocol check for KeePass 2 as I think I had to do that at some point to get it working). If you do not see a credential request please open an issue at https://github.com/kkapsner/keepassxc-mail with all the details.

Rated 3 out of 5 stars

by ssoss on July 24, 2024 ·

The extension works when the KeePassXC database is unlocked, but whenever Thunderbird refreshes an account and the database is locked, it will open a new browser page asking for OAuth2 confirmation for each account.

This review is for a previous version of the add-on (1.8). 

by kkapsner (Developer) on Sept. 8, 2024 ·

As the access tokens for oauth are stored in the KeePassXC database Thunderbird has no way to know these when the database is locked. This behaviour is intended and a security feature.

Rated 5 out of 5 stars

by Firefox user e1621e on June 9, 2024 ·

amazing, help to protect your thunderbird desktop application easily

This review is for a previous version of the add-on (1.7).  This user has a previous review of this add-on.

Rated 5 out of 5 stars

by mdo1 on July 13, 2023 ·

An essential, excellent add-on. A big thank you to the developer for his ongoing work, keeping this updated and adjusted to the changes that newer Thunderbird versions enforce.

This review is for a previous version of the add-on (1.5).  This user has a previous review of this add-on.

Rated 5 out of 5 stars

by TrekkieJonny on Nov. 22, 2022 ·

Just what I needed.

This review is for a previous version of the add-on (1.3). 

Rated 5 out of 5 stars

by Firefox user cc21c2 on Nov. 7, 2022 ·

Perfect. Thanx.

This review is for a previous version of the add-on (1.3). 

Rated 3 out of 5 stars

by McBob on July 5, 2022 ·

What is this for? There's no such plugin for Keepass called "KeepassXC"

This review is for a previous version of the add-on (1.0.3). 

by kkapsner (Developer) on July 5, 2022 ·

It's for the password manager https://keepassxc.org/
If you are using KeePass2 you can use https://keepass.info/plugins.html#keepassnatmsg

Rated 5 out of 5 stars

by Jonny007-MKD on April 8, 2022 ·

A great addon for using passwords stored in KeepassXC directly in Thunderbird without the need to copy & paste them every time. It is as good as the KeepassXC extension in Firefox.

This review is for a previous version of the add-on (0.9).