This extension provides vim key binding, inside firefox webpage for navigation:
Scroll down with "j";
scroll up with "k";
go back to previous page with "h";
go forward with "l".

Install

• License: MIT License
• Weekly downloads: 0
• Average daily users: 0
• Rating: 0/5 of 0 ratings
• Created: 2019-03-28 17:44:50
• Last updated: 2019-03-28 18:25:08
• Homepage:
• Support site and email
• Orig: https://addons.mozilla.org/en-US/firefox/addon/comfortablenavigation/
• API: {157ec8c7-f083-4cad-9e5e-8a802420f1ba}