as far as the ranks are concerned

I built a web site with the mozilla composer that this mean that the ranks may not be as good as it would be if I built it with dreamweaver? comments are fine: even bad ones

 

I think there is no difference with tool you use to create your site. You can do it with the worst one and make good content. If you ask about se ranks of course, because there are many points of view on this same site.

 

It does depend if it creates clean html code or not. Some html builders are known for adding extra code which can negatively effect your SEO effors.