CSS list-based navigation bar (Wordpress menu) doesn't render.

Question

This website is powered by Wordpress with a custom HTML5/CSS3 theme. However, even after various attempts to debug and recode, the navigation menu (based on WP3's built-in menu feature) fails to render in Firefox, where it renders normally in Safari & Chrome.
Screenshots
Correct rendering (safari): http://cl.ly/CsSi
Firefox: http://cl.ly/CsuP

Answer 1

Looks like a missing ')' in one of the style rules that causes Firefxo to skip all subsequnt rules in that file.<br />
<br />
<pre><nowiki>-moz-gradient(linear,10% 0,10% 100%,from(#d9d9d9),to(#ababab);</nowiki></pre>
instead of:
<pre><nowiki>-moz-gradient(linear,10% 0,10% 100%,from(#d9d9d9),to(#ababab));</nowiki></pre>
You can see that in the Error Console.
<pre><nowiki>
Warning: Expected declaration but found '-moz-gradient'. Skipped to next declaration.
Source File: http://portfoliography.com/2.0/wp-content/themes/portfolio/style.css
Line: 1165
Warning: Unexpected end of file while searching for closing } of declaration block.
Source File: http://portfoliography.com/2.0/wp-content/themes/portfolio/style.css
Line: 2329</nowiki></pre>
http://portfoliography.com/2.0/wp-content/themes/portfolio/style.css
<pre><nowiki>.welcomebox {
padding: 1.5em;
background-image: -webkit-gradient(linear,10% 0,10% 100%,from(#d9d9d9),to(#ababab));
-khtml-gradient(linear,10% 0,10% 100%,from(#d9d9d9),to(#ababab));-moz-gradient(linear,10% 0,10% 100%,from(#d9d9d9),to(#ababab);-ms-gradient(linear,10% 0,10% 100%,from(#d9d9d9),to(#ababab));-o-gradient(linear,10% 0,10% 100%,from(#d9d9d9),to(#ababab));-o-gradient(linear,10% 0,10% 100%,from(#d9d9d9),to(#ababab));border-radius: .25em;
-webkit-box-shadow: 0 3px 20px rgba(0,0,0,0.2);
-moz-box-shadow: 0 3px 20px rgba(0,0,0,0.2);
box-shadow: 0 3px 20px rgba(0,0,0,0.2);
text-shadow: 1px 1px 1px #bfbfbf;
margin-bottom: 10px
</nowiki></pre>