This Add-on Changes Scroll-bar color.
why should you download it? because it's less than 10KB and it's cool to have Dark Scrollbar so just download it.

Install

• License: GNU General Public License v3.0 or later
• Weekly downloads: 0
• Average daily users: 23
• Rating: 5/5 of 2 ratings
• Created: 2020-04-19 10:34:23
• Last updated: 2020-04-19 11:30:14
• Homepage:
• Support site and email
• Orig: https://addons.mozilla.org/en-US/firefox/addon/dark-scroll/
• API: {85a0254d-11ad-427c-8346-bdfa829a5afd}