Just wondering...

[psychofurryewok]

Is there an extension which adds a feature so I can type in the navigation bar: "g Foobar" and it'd search for foobar on google. Basically what Opera has. That is the only thing I miss from Opera... Just wondering if there is a way to add those hot letters or whatever they were called. Modify them, etc.

[nicubunu]

read <a href="http://www.mozilla.org/docs/end-user/internet-keywords.html">here</a>.
is an example using google too.