You're free to prefer another extension, but why should a `scroll to top or bottom extension` do more? Why should it render an extra toolbar with several buttons and set a third party website as default for Homepage or New Tab Url?

I don't like that.

Anyhow this extension is designed with minimal code to do what is says, scroll to top or bottom with a gesture, not with buttons.

To rate my extension with 1 star, because it only does what is says, and nothing more, doesn't feel fair.