ejabberd-contrib package in Ubuntu

ejabberd-contrib: user-contributed modules for ejabberd (metapackage)
ejabberd-mod-cron: ejabberd module to execute scheduled commands
ejabberd-mod-default-contacts: ejabberd module to add roster contact(s) upon registration
ejabberd-mod-default-rooms: ejabberd module to add MUC bookmark(s) upon registration
ejabberd-mod-deny-omemo: ejabberd module to prevent OMEMO sessions from being established
ejabberd-mod-filter: ejabberd module to allow specifying packet filtering rules using ACL and ACCESS
ejabberd-mod-grafite: ejabberd module to gather statistics and publish them via statsd/grafite
ejabberd-mod-irc: ejabberd module providing an IRC transport
ejabberd-mod-isolation: ejabberd module to block communication of users between different virtual hosts
ejabberd-mod-log-chat: ejabberd module to log chat messages to text or html
ejabberd-mod-logsession: ejabberd module to log session connections to a text file
ejabberd-mod-logxml: ejabberd module to log XMPP packets to an XML file
ejabberd-mod-message-log: ejabberd module to write a line for each message to a log file
ejabberd-mod-muc-log-http: ejabberd module to serve MUC logs on the web
ejabberd-mod-post-log: ejabberd module to log all messages to an HTTP API
ejabberd-mod-pottymouth: ejabberd module to filter messages using blacklists
ejabberd-mod-rest: ejabberd module providing an HTTP REST interface
ejabberd-mod-s2s-log: ejabberd module to log XMPP s2s connections
ejabberd-mod-shcommands: ejabberd module to execute shell commands via XMPP (dangerous!)
ejabberd-mod-spam-filter: ejabberd module to filter spam messages based on JID/content
ejabberd-mod-statsdx: ejabberd module to calculate and gather statistics actively
ejabberd-mod-webpresence: ejabberd module allowing users to publish their presence information