Installation instructions:

a) Install TamperMonkey or Greasemonkey (Firefox addon)
b) Click the script URL: https://raw.githubusercontent.com/45026831/hh-plus-plus/main/dist/hh-plus-plus.user.js
c) TamperMonkey should automatically prompt you to install/update the script. If it doesn't, open up the TM Dashboard, go to the Utilities tab, scroll down to "Install from URL" and paste the above URL in there.