Rank Checker is a free search engine ranking checking tool for Firefox. This plugin is very useful for all webmasters who want to monitor their webstes ranking on Google and all major search engines.
The tool is easy to use, you can monitor your website ranking with keywords. This tool will show what is the rank of your website on the keyword you want to monitor.
Rank Checker is a free plugin for Firefox and you can download for free.
Link : More Info & Download