When accessing a website via HTTPS which has an untrusted certificate, Internet Explorer 9 always shows me the following error message:

Certificate warning

Is there a way to import the certificate permanently, so that I don't have to click away this message every time?

I don't have access to the root certificate the certificate was signed with.

1 Answer 1


Follow the instructions linked here: https://stackoverflow.com/questions/681695/what-do-i-need-to-do-to-get-internet-explorer-8-to-accept-a-self-signed-certifica

It's pretty much the same for IE9, except you have to press the Alt key on your keyboard to get the menu bar to pop up.

  • 5
    I found I could not follow step 9, <<Click on "Certificate Error" at the right of the address bar and select "View certificates".>> Instead, I right clicked on the page, clicked "Properties" then "Certificates". That worked great. Aug 29, 2012 at 22:11
  • 1
    This solution (installing the untrusted certificate into the Trusted Root Certification Authorities) is extremely problematic, security-wise. You are not adding an exception for a webpage, you are trusting the certificate for all reasons and purposes, including impersonating gmail.com or your bank.
    – Mormegil
    Jun 15, 2016 at 12:51

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