No not at all, firefox gained and gained a firm footing. I was going through the Browser section of my Google Analytic and what I see is a result of random sample of users. More and more users are using the Firefox browser of Mozilla. Second is Internet explorer.
Now this is a real opportunity for the Mozilla to exploit the fact and create a marketing Buzz around the same fact and make more and more other internet users to switch over to the new Browser.
Safari and Opera doesn't see that much success with a few percentages market share. So the browser wars are seeing Microsoft bowing, but it has its position intact in the OS space with a lions share of over 90% market share. Now maybe its due to its better user friendliness and due to large scale piracy in India.