Rated 4 out of 5 stars

While this is called InstallManager_Bing_Microsoft.Exe It is the newest file which installs the Add-on for firefox (and IE "if" you use it[I don't])

http://www.discoverbing.com/toolbar/

The searches are way better then Google, and more intuitive to your needs, without all the "Preferred" sites which Google gets paid for, not to mention every time you turn around, they are violating your privacy, and mine. (I'm glad I sold my stock 4 years ago, while the getting was good), and Google became to big, for good business practices. Bing's bar is down to earth, practical, and also helps keep your hotmail(live,msn hotmail etc) account active online, so you'll know when you receive new email,