Mozilla released Firefox 3 just a week ago. Firefox download day was a big success. Estimated number was a million for that day. But in 24 hours, Firefox 3.0 had been downloaded over 8 million times. As of now, Mozilla counted over 22 million downloads since the release day June 17.

Right after it was released, there have been Firefox 3.0 vulnerability talks around the web. A researcher, who prefered to maintain himself anonymous, found a security hole in firefox 3.0.

Successful exploitation of the vulnerability could allow an attacker to execute arbitrary code.

According to this post at TippingPoint, this problem was encountered in previous firefox versions as well. There are some good comments to that post. In response to this notice, an article has been posted on firefox security blog saying that it’s being investigated. Some people claim that vulnerability is known but they kept it as a secret until now. If this is the case, why would mozilla release firefox 3.0 with such a critical vulnerability? It wouldn’t make sense. Also, according to that post, this problem has been noticed five hours after FF3 was released. Although, this is hard to believe since the previous release candidates were relatively similar releases with the final release.

The good thing is that the researcher has taken the proper action and let Firefox team know about this. This could have caused a lot of problems if it made it to public. This seems to be the only valid news about firefox after the release.

Again, Firefox 3.0 was big success and has been getting good reviews since they released the first beta version. They have made a lot of changes to make it better and firefox team did a great job with it. If you haven’t downloaded Firefox 3.0 yet, you can click on firefox 3 image above. Also check out this download counter to see how many times it has been downloaded.