Bitmessage is a P2P communications protocol used to send encrypted messages to another person or to many subscribers. It is decentralized and trustless, meaning that you need-not inherently trust any entities like root certificate authorities. It uses strong authentication which means that the sender of a message cannot be spoofed, and it aims to hide "non-content" data, like the sender and receiver of messages, from passive eavesdroppers like those running warrantless wiretapping programs.
https://bitmessage.org/wiki/FAQ
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How to install Firefox addons in KM 76 RC:
http://kmeleonbrowser.org/forum/read.php?9,141979
Icons for Goanna KM/SM:
http://kmeleonbrowser.org/forum/read.php?10,150634
K-Meleon Quick Reference:
http://krypton.x10host.com/lizard/commands.html
Basilisk/KM/SM xpi converter:
https://www.addonconverter.fotokraina.com/
Best regards.