A few months later than expected, Mozilla is calling it quits for version 3.0 of its Firefox browser.

"There will be no more updates for Firefox 3.0.x," Mozilla said Tuesday in a meeting planning document. The last update will be Firefox 3.0.19, due March 30, according to the Mozilla Wiki page. Mozilla started building the new version after some last-minute security fixes over the weekend.

Mozilla had planned to discontinue support for Firefox 3.0 in January, but the browser got a lifespan extension after Firefox 3.6 arrived later than planned.

The move reflects a gradual shift toward upgrading browsers more frequently, not just to keep up with new features, but also to free up resources otherwise spent on testing and maintaining older browsers and to reduce security risks associated with them. Google is even more aggressive: its Chrome browser updates automatically in the background by default, and it calls new releases "milestones" to be passed rather than version numbers to be attained.

火狐（Firefox）瀏覽器開發商Mozilla表示，將於本月底發佈Firefox 3.0最後一次升級版，此後將不再對Firefox 3.0提供後續技術支援。

Mozilla原定於今年1月停止對Firefox 3.0的技術支援，但由於Firefox 3.6多次延期發佈，Firefox 3.0的技術支援時間也得以相應延長。業界人士指出，Mozilla宣佈停止對Firefox 3.0技術支援，目的是希望加快新版Firefox發佈速度，也就是為Firefox增加新功能的同時，促使更多開發人員參與各類技術測試，並減少對舊版Firefox技術支援的工作量。