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Getting 'Untrusted Certificate' error for mail.yahoo.com


I am using FireFox 3.6.12 and was not able to login into mail.yahoo.com due to 'Untrusted Certificate' error. Now I am able to to see mail.yahoo.com as I raised the exception and change the system date (don't know how it went forward). On knowing the issue was related to login.yahoo.com certificate, I checked on for firefox browser. It says that it is valid till 1/4/2011 only. Does that mean I won't be able to use yahoo once it expires? dbengali

Additional System Details

Sites Affected


Installed Plug-ins

  • Office Plugin for Netscape Navigator
  • Adobe PDF Plug-In For Firefox and Netscape "9.3.3"
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Default Plug-in
  • Shockwave Flash 10.1 r82
  • Picasa plugin
  • Next Generation Java Plug-in 1.6.0_21 for Mozilla browsers
  • DRM Store Netscape Plugin
  • DRM Netscape Network Object
  • Npdsplay dll


  • User Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv: Gecko/20101026 Firefox/3.6.12

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  • Top 10 Contributor
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10758 solutions 96836 answers

You can expect that the site will renew the certificate in time to avoid such problems. In some rare cases they forget and you will get an error.