Provides virtual scrollbar on viewport edges.
On a very long page, it is too painful for me to scroll from the bottom to the top because I have to swipe the screen again and again. Then this addon will help you! This provides a virtual scrollbar on the edge of the viewport, so you can scroll to any position in the long page easily and quickly.
If you see any problem, see FAQ at first. If there is no solution, post a report to the issue tracker on the GitHub please.
Released version includes following language packs: