Once you install this user style you need to enter the url of your wordpress site, to do this edit the user style and change the following line: @-moz-document domain("yoururl.com")

if you have multiple url's add a comma before each new url like so ", domain("yoursecondurl.com")" without the outer quotes, you can also use "url" instead of "domain".

This style will not be updated since it is complete unless anyone finds a bug I missed.