# What is this (Thunderbird)?

**URL:** <https://forum.delta.chat/t/what-is-this-thunderbird/2714>\
**Category:** Uncategorized\
**Created:** [September 9, 2023, 9:24am UTC](https://forum.delta.chat/t/what-is-this-thunderbird/2714 "2023-09-09T09:24:38Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![tompatulpan](https://forum.delta.chat/user_avatar/forum.delta.chat/tompatulpan/32/918_2.png) [@tompatulpan](https://forum.delta.chat/u/tompatulpan)\
**Post date:** [September 9, 2023, 9:24am UTC](https://forum.delta.chat/t/what-is-this-thunderbird/2714/1 "2023-09-09T09:24:38Z")

</div>

Hey, could someone explai what this means?

![Screenshot_20230909_111832](https://support.delta.chat/uploads/default/original/2X/8/8c606779933d1041c39a243f45e154b989bda7ac.png)

Seen in Thunderbirds account settings.

---

<div class="post-metadata">

**Author:** ![Raiden](https://forum.delta.chat/user_avatar/forum.delta.chat/raiden/32/2544_2.png) [@Raiden](https://forum.delta.chat/u/Raiden)\
**Post date:** [September 9, 2023, 9:39am UTC](https://forum.delta.chat/t/what-is-this-thunderbird/2714/2 "2023-09-09T09:39:04Z")

</div>

Hello 👋,  
it looks like Thunderbird supports Autocrypt again. 🥳  
With Autocrypt, emails are automatically encrypted as long as the recipients also use it.  
So it is now possible again as a DC user to communicate encrypted with non-DC users who use Thunderbird.

---

<div class="post-metadata">

**Author:** ![tompatulpan](https://forum.delta.chat/user_avatar/forum.delta.chat/tompatulpan/32/918_2.png) [@tompatulpan](https://forum.delta.chat/u/tompatulpan)\
**Post date:** [September 9, 2023, 9:41am UTC](https://forum.delta.chat/t/what-is-this-thunderbird/2714/3 "2023-09-09T09:41:40Z")

</div>

Ok, really! Cool!  
Well I did use the Autocrypt plugin years ago and it worked fine between TB and DC, I have also read that there might be plans to implement it again (I think?).  
Will test then!

---

<div class="post-metadata">

**Author:** ![tompatulpan](https://forum.delta.chat/user_avatar/forum.delta.chat/tompatulpan/32/918_2.png) [@tompatulpan](https://forum.delta.chat/u/tompatulpan)\
**Post date:** [September 9, 2023, 6:29pm UTC](https://forum.delta.chat/t/what-is-this-thunderbird/2714/4 "2023-09-09T18:29:35Z")

</div>

Nah, not sure what this is intended for?  
Found this info - [OpenPGP in Thunderbird - HOWTO and FAQ | Thunderbird Help](https://support.mozilla.org/en-US/kb/openpgp-thunderbird-howto-and-faq#w_does-thunderbird-support-autocrypt)  
Not sure if this info is still valid though?

---

<div class="post-metadata">

**Author:** ![r10s](https://forum.delta.chat/user_avatar/forum.delta.chat/r10s/32/1513_2.png) [@r10s](https://forum.delta.chat/u/r10s)\
**Post date:** [February 12, 2026, 2:48pm UTC](https://forum.delta.chat/t/what-is-this-thunderbird/2714/5 "2026-02-12T14:48:14Z")

</div>