Award Winning Yahoo! Toolbar Now Available To Users Yahoo! Ships Toolbar for Leading Open Source Browser

SUNNYVALE, CA (February 10, 2005) - Yahoo! Inc. (Nasdaq: YHOO,) a leading global company, today announced the beta release of the Yahoo! Toolbar for the Mozilla Firefox . Awarded the "Editor's Choice" by CNet and ranked the most popular toolbar on the Web , the Yahoo! Toolbar Beta will enable Mozilla Firefox users to fully customize their Internet experience. "The Yahoo! Toolbar provides Internet users with a faster, safer and personalized Web experience," said Eckart Walther, director product development, Yahoo! Search. "Yahoo! is now making this functionality available to Firefox users, enabling them to improve their Internet browsing experience using Yahoo!'s industry-leading toolbar." Key Yahoo! Toolbar features available for the Mozilla Firefox browser include: Bookmarks and custom buttons that follow you anywhere - never again lose your bookmarks when you switch browsers or log on from different locations (i.e., home or work) "Search this site" to find results just for the current web site Search history to remember your previous searches "Translate this page" based on the popular Babelfish tools Mail notification/alerts when new Yahoo! Mail arrives One click access to Yahoo! Games, Finance, News, Sports and any web site you choose One click "Add to My Yahoo!" on sites that provide RSS/Atom feeds

"We're excited about the release of the Yahoo! Toolbar for Firefox," said Mitchell Baker, president of the . "Firefox has been downloaded more than 23 million times since its launch in November and the Yahoo! Toolbar release demonstrates the popularity of the browser and the success of the Mozilla platform. We're very pleased that Yahoo! is supporting browser choice and innovation with this new product." The Yahoo! Toolbar Beta for Mozilla Firefox is available for download at http://toolbar.yahoo.com/firefox. The toolbar is currently available for Windows, with versions for MacOS X, Linux and the award winning Yahoo! Anti-Spy expected shortly. About Yahoo! Yahoo! Inc. is the No. 1 Internet brand globally and the most trafficked Internet destination worldwide. Yahoo! provides online products and services essential to consumers' lives, and offers a full range of tools and marketing solutions for businesses to connect with Internet users around the world. Yahoo! is headquartered in Sunnyvale, Calif. Media Contacts: Yahoo! Stephanie Ichinose 408-349-6877 [email protected] Fleishman Hillard for Yahoo! Tara Kirchner 415-318-4121 [email protected]