You may want to ask Yahoo support about that. There is a special version of Firefox that I have seen mentioned here, Yahoo 1.9 was mentioned as the special version. Plus I have seen a BrowserPlus -- Improve your browser! -- http://browserplus.yahoo.com/ listed in the Installed Plugins for some users. Not sure what it does so you may want to ask about that, too.

Thank you for spending time on my problem. I've seen "BrowserPlus" too, with the results:

BrowserPlus is not available on your browser. Currently we support:

Windows XP & Vista

   Internet Explorer 6 & 7 & 8
   Safari 3.x & 4.x
   Google Chrome
   Mozilla Firefox 2 & 3 

OK I'll try to ask Yahoo support team. Thanks once again.

BTW you need to Update Windows XP from SP2 to SP3

Learn how to install Windows XP Service Pack 3 (SP3)

• http://windows.microsoft.com/en-US/windows/help/learn-how-to-install-windows-xp-service-pack-3-sp3

Other Windows XP related Downloads

• http://windows.microsoft.com/en-US/windows/downloads/windows-xp

Thanks a lot. Well, Windows XP was updated to SP3. It's a pity - no progress with Yahoo :(

What are your System Details ?? Which system you are using ??

Microsoft Windows XP Professional Ru Ver. 5.1.2600 Service Pack 3 Build 2600

Download latest Firefox 6.0.1 version from one of these links:

• http://www.mozilla.com/en-US/firefox/new/
• http://www.mozilla.com/en-US/firefox/central/
• http://www.mozilla.com/en-US/firefox/fx/
• http://www.mozilla.com/en-US/firefox/all.html

Uninstall your current Firefox

• https://support.mozilla.com/en-US/kb/Uninstalling%20Firefox
• DO NOT SELECT TO REMOVE USER DATA AND SETTINGS

Install Firefox using the downloaded installer file

• https://support.mozilla.com/en-US/kb/Installing%20Firefox%20on%20Windows

Check and tell if its working.