Whouw, I didn't know they're still doing Jabber spam. Is Jabber still alive?
Yes, I have my Jabber client on auto-start, so I don't miss any messages. Just in case.
Discussion
#Thunderbird auto starts signs me in to #XMPP, #Matrix and email all together. Yet to receive my first message on XMPP...
#Jabber
How did you integrate Matrix into Thunderbird?
Nevermind, found it
https://support.mozilla.org/en-US/kb/thunderbird-matrix-chat-faq