Yep, quite a lot of people seem worried by the Chrome privacy statements, specifically the one shiva highlighted and this one;

"Your copy of Google Chrome includes one or more unique application numbers. These numbers and information about your installation of the browser (e.g., version number, language) will be sent to Google when you first install and use it and when Google Chrome automatically checks for updates. If you choose to send usage statistics and crash reports to Google, the browser will send us this information along with a unique application number as well."

So they have the right to do whatever they want with the information you enter into the browser AND they can tie that information to you via the unique application number. Not sure if other browsers have quite this level of privacy invasion.