The SeaMonkey project is a community effort to develop the SeaMonkey Internet Application Suite
https://www.seamonkey-project.org
GNUzilla is the GNU version of the Mozilla suite, and GNU IceCat is the GNU version of the Firefox browser.
https://icecatbrowser.org
Pale Moon is an Open Source, Mozilla-derived web browser available for Microsoft Windows and Linux, focusing on efficiency and ease of use.
https://www.palemoon.org
Waterfox is the privacy-focused web browser engineered to give you speed, control, and peace of mind on the internet.
https://www.waterfox.net
The distro is for penetration testing and ethical hacking and also privacy, hardened, secure, anonymized Linux. Predator Linux is based on Ubuntu 20.04 LTS Mini, kernel 5.10 LTS, and using a fully customized xfce4 lightweight desktop with a special menu of tools. Predator Linux has around 1300 pre-installed tools which are split into 40 several categories
https://predator-os.ir
Welcome to TSURUGI Linux world a DFIR open source distribution to perform your digital forensics analysis and for educational purposes
https://tsurugi-linux.org
A very small, very simple, yet very secure encryption tool. - Picocrypt/Picocrypt
https://github.com/Picocrypt/Picocrypt
Encrypt Dropbox, Google Drive, and any other cloud. Cryptomator is free and open source.
https://cryptomator.org
The Fedora Security Lab provides a safe test environment to work on security auditing, forensics, system rescue and teaching security testing methodologies in universities and other organizations.
https://labs.fedoraproject.org/security