xul-ext-greasemonkey 0.8.20100408.6-2build1 (i386 binary) in ubuntu maverick

 Greasemonkey allows users of the Iceweasel/Firefox web browser to create or
 download user scripts which modify the content or behavior of web sites. It
 provides a powerful way to personalize the web. The scripts are written in
 JavaScript and have access to many of Iceweasel's/Firefox's features.
 .
 A large collection of prewritten scripts can be found at userscripts.org