Google has updated the toolbar just in time for the Firefox 3 release. Although Firefox 3 has advanced search capabilities downloading the toolbar is worth because
1. You can add favorite buttons.
2. Bookmark ! – Simply click the Toolbar’s star icon, or right- click the star to add and label bookmark. You’ll be able to access your Bookmarks menu on any computer with the new Google Toolbar installed.
3. New! Send To- You can use your Google Toolbar to share web pages via email, text message (SMS), or blog. To share an entire page, select from the Toolbar’s “Send To” menu; to share an excerpt, simply select the section of the page you want to share before clicking “Send To.”

still the new beta toolbar has’t been made available for Firefox.