GnuPG is the GNU project's complete and free implementation of the OpenPGP standard as defined by RFC4880. GnuPG allows to encrypt and sign your data and communication, features a versatile key management system as well as access modules for all kinds of public key directories. GnuPG, also known as GPG, is a command line tool with features for easy integration with other applications. A wealth of frontend applications and libraries are available. Version 2 of GnuPG also provides support for S/MIME.
Mozilla F1 So, what’s F1? F1 is a browser extension that allows you to share links in a fast and fun way. Share links from within the browser, from any webpage, using the same services you already know and love. Mozilla F1 is made by Mozilla Messaging.
Open source software is software that can be freely used, changed, and shared (in modified or unmodified form) by anyone. Open source software is made by many people, and distributed under licenses that comply with the Open Source Definition. The Open Source Initiative (OSI) is a global non-profit that supports and promotes the open source movement. Among other things, we maintain the Open Source Definition, and a list of licenses that comply with that definition.
What is GNU? GNU is a Unix-like operating system that is free software—it respects your freedom. You can install versions of GNU (more precisely, GNU/Linux systems) which are entirely free software. What we provide. The GNU Project was launched in 1984 to develop the GNU system. The name “GNU” is a recursive acronym for “GNU's Not Unix!”.