Rated 5 out of 5 stars

I am impressed this add-on. Nice concept and for me is very useful. Thanks.
BTW, I would like to add some my own parameters. Unfortunately I can not get to ‘about:config’. Where can I find it in Firefox 12.0 (WIN7)?
Once again many thanks for this add-on.

This review is for a previous version of the add-on (0.6.1-signed.1-signed). 

Thank you for the rating. You just need to type "about:config" in the address bar.