What did I do wrong - Safari 6.0.5 on 10.8.4
For what it is worth, I generally recommend to people who don't want to update their OS that they use chrome. Apple only updates safari when they update the entire os, so you are better off with a third party solution for a browser.

(Mavericks came out after this question was posted, so this answer is only effective for people looking for an answer to the question now that it has been released.)