Just download opera browser for PC and after downloading install it and then open it.
On right hand side u can see google icon in search bar.click on Google icon and press manage search engines.
Now a window will open press ADD and after that give name as freenet
and in address type http://122.170.122.191.cinipac.net/browse.php?u=http://%s
You can use any working front query just use %s after the frontquery.....and %s before if you are using back query..
Here are some examples.
for front query: 0.facebook.com.mebapp.com/power/t1s/http/%s or 0.facebook.com.www.concealme.com/nph-proxy.pl/0A/http/%s
backquery:%s?0.facebook.com/?zout=1 use any fq or bq.
now tick on use as default and press ok
after that just type any site in search bar without http i.e Type airteltrickz.com in the right hand side search bar and hit enter