Yahoo! Toolbar displays the customized buttons associated with your Yahoo! ID when you're signed in to Yahoo!. This includes bookmarks, Yahoo! Messenger contacts, etc. However, the Messenger button reflects the Y! ID of your Yahoo! Messenger client, so signing in to Yahoo! Messenger with a different user will show the Contacts of that user under the Messenger button.

For example, if you sign in to Yahoo! Mail as John, you receive mail notification for John's Yahoo! Mail and John's contacts under the Messenger button in the toolbar. However, if you stay signed in to Yahoo! Mail as John, but then sign in to Yahoo! Messenger as Paul, you receive mail alerts in the Yahoo! Toolbar for John's Yahoo! Mail, but see Paul's contacts under the Messenger button in the toolbar.

We recommend that you sign in to Yahoo! Toolbar and Yahoo! Messenger with the same ID to avoid any confusion.

The Messenger button requires Yahoo! Toolbar 6.2 and newer for Internet Explorer, and Yahoo! Messenger 7.0 or newer. To check the version of your toolbar, select "About Yahoo! Toolbar" from the Pencil menu. To check the version of your Messenger client, select "About Yahoo! Messenger" from the Help menu.

If you have Yahoo! Toolbar 6.2 for Internet Explorer and Yahoo! Messenger installed, but don't have the Messenger button on your toolbar, you can add it to your Yahoo! Toolbar now (requires sign-in).