Firefox and Customization

I have two questions:

1. After successfully installing and implementing Site Categories, I noticed that on Firefox when a blog is listed to that category there is a number next to the blog and on top of the page is the words “here” (here repeated five times because there is 5 blogs associated with that category). How do I remove that and is that just Firefox.

2. I have a category called: Feature Blogs. How do I hide that option from my users, but at the same time allow the admin to assign blogs to that category. Is that possible without with the existing plugin?

Thank you.