It is just that one line of css that hides the feed filter bar. It does nothing else. You can do the same with any ad-blocker, but if you don't want to use one, you can just use this.

Install

• License: Mozilla Public License 2.0
• Weekly downloads: 0
• Average daily users: 1
• Rating: 5/5 of 1 ratings
• Created: 2021-06-25 17:02:04
• Last updated: 2021-06-26 17:10:46
• Homepage:
• Support site and email
• Orig: https://addons.mozilla.org/en-US/firefox/addon/yt-ff-remover/
• API: {cc06b65e-db7c-4d49-a347-653955392819}