Firefox with Google Toolbar

Mozilla Firefox is a fast, full-featured browser for Windows that makes
browsing more efficient than ever before. Firefox includes pop-up
blocking; a tab-browsing mode that lets you open several pages in a
single window; integrated Google searching; simplified privacy
controls that let you cover your tracks more effectively; a
streamlined browser window that shows you more of the page than
any other browser; and a number of additional features that work
with you to help you get the most out of your time online.