Oh my god,
The button is the same for IE(os independant):

javascript: Q=document.selection.createRange().text;
if(!Q){void(Q=prompt('Gimme%20some%20text%20to%20search%20E2!%20Now','
+'))};
if(Q)location.href='http://www.perlmonks.org/index.pl?node='+escape(Q)
+;
[download]

"cRaZy is co01, but sometimes cRaZy is cRaZy".
                                                      - crazyinsomniac