Protect yourself on the net, especially from surveillance.
I cannot vouch for the accuracy of the opinions or the information, because my level of expertise is too low, but you can decide for yourself. If some of the topics are unfamiliar, explanations are clear. There are estimates of Difficulty Level for using each tool, and Warnings. The list is comprehensive. If you are interested in privacy and avoiding vulnerability, take a look at the "black hole router condition" link at the bottom of the topic list.
Browsers: Firefox, Chromium, Tor (and other browsers to avoid)
Browser Add-ons: HTTPS Everywhere, Privacy Badger, NoScript, uBlock, Random Agent Spoofer, Self-Destructing Cookies, Better Privacy.
Password Managers: Password Safe, KeePass, LibreOffice
Web Analytics: Piwick, Open Web Analytics, AWStats
Disk Encryption: TrueCrypt, VeraCrypt, Linux Unified Key Setup
File Encryption: LibreOffice, GnuPG, P7ZIP/PeaZip, TrueCrypt
VPN (Virtual Private Network)
Operating Systems: Linux Mint, Ubuntu, Arch Linux
Take Action: EFF, FSF, Open Source Software
Best Practices: Two-Factor Authentication, Passwords, HTTPS