Install irssi-plugin-xmpp by entering the following commands in the terminal:
sudo apt update sudo apt install irssi-plugin-xmpp
Description:
XMPP plugin for irssi
An irssi plugin to connect to the Jabber network, using the XMPP protocol. . Its main features are: - Sending and receiving messages in irssi's query windows - A roster with contact & resource tracking (contact list) - Contact management (add, remove, manage subscriptions) - Tab completion of commands, JIDs and resources - Support for multiple accounts - Unicode support (UTF-8) - SSL support
Homepage: https://cybione.org/~irssi-xmpp/
Version: 0.54-2
Section: universe/net