RubyURL shortcut for your toolbar
javascript:void(location.href='http://rubyurl.com/rubyurl/remote?website_url='+location.href)
Just drag/copy this link to your toolbar.
Maybe if I get some time soon, I will work on a firefox extention, but for the time being, this is cross-browser friendly. :-)
The last time that I checked, there were about 1300 unique rubyurls generated. Maybe this will help drive up that count. :-)