Twitter AutoRefresh is a Chrome extension that allows you to select whether you want to refresh your timeline or if you want to leave the refresh off to scroll.
Install via the Chrome Web Store.
2.1.0: Settings now update on page_action click instead of popup input box. 2.0.1: Fixed issue with loading checkbox correctly. 2.0.0: Changed to using Chrome storage and page_action. 1.1.0: Added support for remembering user setting. 1.0.0: Initial commit.