[Installing addons to non-Microsoft software without meaningful notification][link]. Anyone who thinks the Zune HD or Windows 7 will be *better*, remember that this is where their instincts lie.
[link]: http://voices.washingtonpost.com/securityfix/2009/05/microsoft_update_quietly_insta.html?wprss=securityfix “Security Fix – Microsoft Update Quietly Installs Firefox Extension”