Another thing you can do is
make a new bookmark in firefox with these settings:
name: Osu! Search
target:
http://osu.ppy.sh/p/beatmaplist?
s=7&
o=1&p=beatmaplist&q=%s&
r=0&
g=0&
la=0keyword: osu
Then you simply type in the url bar
osu [search term]
and press enter, and it will go to osu and do the search.
Leave the target as it is if you want the default search, if not
green=sort0:title, 1:artist, 2: creator, 3: difficulty, 4:ranked, 5:userratings, 6:plays
blue=order0: ascending, 1:descending
orange=display0: ranked, 1: ranked(unplayed), 2:approved, 3:pending, 4:all, 5:graveyard
purple=genre0:any, 1:unspecified, 2:videogame, 3:anime, 4:rock, 5:pop, 6:another, 7:novelty, 9:hiphop, 10:techno
pink=language 0:any, 1:other, 2:english, 3:japanese, 4:chinese, 5:instrumental, 6:korean, 7:french, 8:german, 9:swedish