yahoo recently launched their toolbar for firefox browser, Firefox is an increasingly popular browser next to internet explorer of microsoft, you can down load firefox toolbar here,

toolbar.yahoo.com/firefox

Also their internet explorer toolbar version has various features some of them are,

• Easy access to Yahoo! Search
• Bookmarks and custom buttons that follow you anywhere
• 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 when new Yahoo! Mail arrives
• One click access to Yahoo! Games, Finance, News, Sports and any web site you choose
  New Feature: One click "Add to My Yahoo" on sites that provide RSS/Atom feeds

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