Easily Scroll to Top or Bottom

Qi*****

My old scroll to top/bottom button extension got nuked by Chrome and I was looking for a replacement. Many of the alternatives either looked ugly, didn't scroll to bottom, doesn't disappear when not in use or were also nuked. Decided to give this one a try despite it having no reviews and I'm really satisfied - it works exactly as it should, no extra bells and whistles, looks sleek AND changes colour according to dark light backgrounds. 赞！