Adds various functionalities to Typeracer.com. This extension: - Hides most of the ads that appear around the page border - Allows you to automatically enter races without clicking "Race Again" - When you click "Try Again" on a quote, highlights all the mistakes you made last time so you know where you need practice - Stops the space bar and backspace key from messing up races (by scrolling or navigating back) - Adds a menu to access various "universes" (different versions of the site with special rules)