Keep your searches private with Protected Search | Eclectic Technology | Scoop.it
From abine.com - March 1, 2012 9:45 AM

Are you concerned that Google knows everything you search for online? Protected Search prevents Google from being able to see what you search and what sites you visit. The new service, built from the popular GoogleSharing service, helps put you back in control of your online privacy. 

The Wall Street Journal published an article "Keeping Google from Watching Your Searches" that discusses Protected Search and it states that currently this works with Firefox. The article is at http://blogs.wsj.com/digits/2012/03/01/keeping-google-from-watching-your-searches/