This is one of my favorite addon/plugins for Firefox. I have about six plugins and buttons that totally synergize my online work. This one is able to keep up with statistics of my web travels. The reason this is important is that if you are an SEO nut and want to create a better trend for your site, you need to do three things: 1. Work it. 2. Share it. and 3. Browse it. This helps you do the third thing.
Just take a moment every day to browse three to five of your pages while you have Sparky running. The trends are reported back to Alexa and your ratings are increased. The same thing needs to happen every day and all your friends need to help by downloading the bar as well so that their time spent on your site will also increase that rating.
And there you go!
Enjoy!
pd