1. Save your settings.
    cd Desktop
    pluck export >pluckeye-settings.txt
  2. Change to level 1.
    pluck set "level 1"
  3. Reboot.
  4. Uninstall Pluckeye.
  5. Reboot.
  6. Reinstall Pluckeye.
  7. Start all browsers (Firefox, Chrome, Pale Moon and Vivaldi, etc.)
  8. Change Pluckeye to level 2.
    pluck set "level 2"
  9. Restart all browsers.
  10. If everything seems to be working, then reimport original settings.
    pluck clear
    cd Desktop
    pluck import pluckeye-settings.txt