• View
• Edit
• History
• Print

DisableMicrosoftsFirefoxExtensionThatIsAddedWithoutYourPermission

Microsoft Installs Firefox Extension Without Permission (@ Slashdot)

"A little Net searching turned up a number of sites offering advice on getting rid of the unrequested add-on."

Also change your browser string back to what it was before though "about:config", so that Microsoft can't claim that it's installed.