banananoizz

ul.menu li a
{
display:block;
}

kb.mozillazine.org/Keyword.enabled
'Certain proxy servers—most notably, Netscape Proxy Server—implement domain guessing that prevents Internet Keywords from working. In other words, entering “mozilla” into the Location Bar may direct you to www.mozilla.com/ automatically instead of submitting the entered term to the Internet Keywords URL.'

try
addons.mozilla.org/en-US/firefox/addon/omnibar/