Firefox with Greasemonkey: Love Google search, but got just a few small tweaks to it on your wish list? GoogleMonkeyR is a Greasemonkey script that makes it easy to tweak the Google interface, disable tracking, and enable infinite scrolling.
GoogleMonkeyR allows you to change the way Google search results are displayed. You can turn on numbering, have multiple columns of search results, give search result entries a distinct border or background colour, and have the links to the search results open in a new tab. You can also add some extra information to search results by turning on the favicon and image preview function.
One of the handiest tricks in the GoogleMonkeyR bag, however, is enabling auto-loading results and disabling tracking. Instead of clicking from page to page of search results, you can simply scroll on until you run out results to look at. If you don't like Google keeping an eye on your searchers when you are logged into Google services, you can disable tracking via GoogleMonkeyR.
GoogleMonkeyR is free and works wherever Firefox with Greasemonkey installed does. Thanks Scott!