Chrome/Chromium uses XMPP to synchronize between browsers: https://sites.google.com/a/chromium.org/dev/developers/design-documents/sync https://sites.google.co

Chrome/Chromium uses XMPP to synchronize between browsers: https://sites.google.com/a/chromium.org/dev/developers/design-documents/sync https://sites.google.com/a/chromium.org/dev/developers/desig... [ricardo@Brynhildr ~]% /sbin/ss -p | grep chromium ESTAB 0 0 192.168.66.67:50225 74.125.45.125:xmpp-client users:(("chromium-browse",2766,155)) CLOSE-WAIT 1 0 192.168.66.67:48406 174.143.235.145:www users:(("chromium-browse",2766,162)) ESTAB 0 0 192.168.66.67:34108 74.125.229.55:https users:(("chromium-browse",2766,148)) [ricardo@Brynhildr ~]% host 74.125.45.12 125.45.125.74.in-addr.arpa domain name pointer yx-in-f125.1e100.net.