Five Browser Secrets of Power Web Surfers — from fastcompany.com by Gina Trapani — describes how to:

  1. Set multiple tabs as your browser home page.
  2. Automatically restore the last tabs and windows you had open.
  3. Undo your last closed tab.
  4. Open a link in a background tab by clicking your mousewheel.
  5. Sync your bookmarks across browsers and computers.