Which version of the Yahoo! Toolbar are you using ?? Try updating it to the latest Yahoo! Toolbar 2.4

• http://toolbar.yahoo.com/

IF it still doesn't work, try using this extension to force compatibility:

-> Add-on Compatibility Reporter

• https://addons.mozilla.org/en-US/firefox/addon/add-on-compatibility-reporter/

For more assistance regarding the Yahoo! Toolbar, see this:

• http://help.yahoo.com/l/us/yahoo/toolbar/

Check and tell if its working.

Sorry, my mistake, It was the google toolbar.

I downloaded the new yahoo tool bar & it works Firefox7/Windows XP

I have windows 7

-> Google Toolbar is no longer compatible with Firefox - Here are some alternatives

Google broke their Google Toolbar extension around 09-17-2011, by changing the login address for their "accounts". IF you want to continue using the Google Toolbar, you will need to edit the address to the new one because I doubt if Google is going to fix that extension - they have decided not to support Firefox 5+ versions with a new version of the Google Toolbar.

-> Open your Profile folder

• https://support.mozilla.com/en-US/kb/Profiles#w_how-do-i-find-my-profile

-> Close Firefox (click Firefox button and click Exit OR File Menu -> Exit)

• With Firefox closed, open the \extensions\ folder in your Profile folder, then locate this folder and open it
• {3112ca9c-de6d-4884-a869-9855de68056c}

-> Then you need to open the \lib\ folder to see the toolbar.js file. Open that file in a simple text editor program.

• Edit every occurrence of www.google.com/accounts to accounts.google.com - using the Find feature in the text editor - (I counted 15 times that address appeared in the toolbar.js file)
• Save the edited file.

-> Restart Firefox

Check and tell if its working.