It's working.
Not on Firefox website but ye.
Its would be great to:
Click and hold the arrow to move up and down.

Good job, very useful extension, especially if you don't like falling in a trance by scrolling down infinitely.

It's good, but I need left side and right side buttons at the same time

Working on Android. Please make arrow position adjustable downward...

Very simple to use, with customization options allowing to set the transparency of the scroll buttons and the amount of space at the bottom that is kept at the top after scrolling (the dead zone). The cherry on top would be a bit more customization options for the scroll button placements (or a working "bottom" placement, broken as of now Dec. 22, 2024), but it's great for its purpose already as it is.