With Scroll To Top for Firefox, it will be fun than just scroll. It adds images at bottom-right corner of the page to give you one click scrolling to top and vice-versa with animation. You can customize the scrolling image.
Full Specifications
What's new in version 3.5.1
Version 3.5.1 includes multiple stability changes for iFrames, new intelligent logic for the icon, and totally new options page for settings.
General
ReleaseNovember 12, 2012
Date AddedNovember 12, 2012
Version3.5.1
Operating Systems
Operating SystemsWindows 2003, Windows 2000, Windows Vista, Windows, Windows 7, Windows XP