Yahoo vows to open all services to Firefox users Yahoo has confirmed plans to allow Firefox users to access all its products and services, many of which are currently only available through Microsoft's Internet Explorer (IE) browser. Yahoo's decision to only launch new products that support both major browsers is huge boost for Firefox, according to Foad Fadaghi, senior industry analyst at Frost & Sullivan Australia. "The momentum right now is behind Firefox. The Internet players are making sure they don’t miss out if there is a mass migration--they have realised that it is not just a Microsoft game anymore," said Fadaghi.