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sec_error_cert_signature_algorithm_disabled is appearing anytime i try to access some of my most frequented websites. how do i fix it?

  • 2 (ردّان اثنان)
  • 1 has this problem
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  • آخر ردّ كتبه cor-el

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I'm recieving certificate denial on some sites and get the error sec_error_cert_signature_algorithm_disabled. Any tips on how to fix it?

I'm recieving certificate denial on some sites and get the error sec_error_cert_signature_algorithm_disabled. Any tips on how to fix it?

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hello, please update to firefox 43.0.4 which will likely solve this problem for the moment. this is likely caused by your security software (avast?) intercepting secure connections.

https://blog.mozilla.org/security/2016/01/06/man-in-the-middle-interfering-with-increased-security/

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There are other things that need attention. Your System Details List shows multiple Flash plugins.

  • Shockwave Flash 19.0 r0
  • Shockwave Flash 20.0 r0

You can find the installation path of all plugins on the about:plugins page.

You can check the Flash player installation folder for multiple Flash player plugins and remove older version(s) of the plugin (NPSWF32) and possibly (re)install the latest Flash player.

  • (32 bit Windows) C:\Windows\System32\Macromed\Flash\
  • (64 bit Windows) C:\Windows\SysWOW64\Macromed\Flash\