Scroll to Top by ExtStore
Scroll to Top is a lightweight yet dynamic plugin for Joomla. It adds a linked button which appears when the users scroll down, and disappears when users reach the top of the page. This button quickly scrolls the page to the top once it is clicked. Scroll to Top gives your website better navigation and adds a more professional look to your current layout. This free plugin is a must-have extension for website with long pages.