Adds a new search box so you can easily search tweets from that user's timeline.
Adds a new search box on a Twitter user page (example: https://twitter.com/jmwhittaker) underneath the follow & message buttons.
The search will return results from that users timeline only. Hand for finding a tweet by a specific user that you have forgotten, or even seeing tweets on a certain topic or hashtag from a specific user. Even works on your own profile page :)