The Naver.com, a big korean portal site start to support web site compatiblity in Firefox. It holds the Naver Bug Day with Mozilla Korean Community during February 2006. The Naver.com is the favorite portal site focused on search service in most of korean internet users. It receives a tremendous 700 million page views and 14 million unique visitors every single day. Because many of them uses Internet Explorer, there are a few browser support for minor including Firefox, Safari and Opera. But, they decided to support Firefox users for remarkable increasing in this market.