Click Tools | Add-ons | Plugins and disable '''Fun Web Products'''. This is adware/spyware rolled into one. ---- Update Firefox to 3.6.17 via '''Help '''| '''Check For Updates'''. The version you have installed at the moment is a security risk. ---- Next, update the following:<br><br> * Java via http://www.java.com/en/<br><br> * Adobe Flash via http://get.adobe.com/flashplayer/<br><br> * Adobe Shockwave For Director via http://get.adobe.com/shockwave/<br><br> * Adobe Reader via http://get.adobe.com/reader/?promoid=BUIGO<br><br> * Microsoft Silverlight via the Windows Update site (link on your Start menu)<br><br> Finally, install this add-on: https://addons.mozilla.org/en-US/firefox/addon/flash-video-downloader-youtube/ ---- Here's the relevant Adobe security advisory which explains why you should update the above: http://www.adobe.com/support/security/advisories/apsa11-02.html