Came across a firefox exploit while looking for something from a gfy thread .
this one is being used right now so watch out if your surfing around..
funny thing is that ie blames firefox and firefox blames ie.. and it seems like it only works in ie. but uses firefox for the exploit in the URI handler
this example may or may not work for you , its COMPLETELY SAFE
http://com.webspacemania.com/fox/
test 2
http://com.webspacemania.com/fox2/