What is she talking about? It's this:
I took the above post, highlighted the words I was curious about, and right-clicked. I went down to "Web Search..." Having selected Google as my default search engine, the Google results for those search terms came up in a new window.
The first result was the book itself in Yahoo Shopping, which gave me enough information to be intrigued by it.
All this is available in the newly-released Mozilla 1.1, which you can find at mozilla.org. If you're not ready to convert completely, you can keep IE as your main browser while you play with Mozilla.
But once you find the tabbed browsing feature of Mozilla, you won't go back.