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Getting sec_error_untrusted_issuer error. Even after remove cert8.db

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  • 13 have this problem
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  • Last reply by Joanetpics

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Trying to open the site https://fogaiba.atlassian.net I get the sec_error_untrusted_issuer and I cannot add exceptions.

I have read a lot about it and I have already deleted cert8.db file.

I use Windows XP and Firefox 18.

Any ideas? With Google Chrome I can enter the site after accepting the exception.

Trying to open the site https://fogaiba.atlassian.net I get the sec_error_untrusted_issuer and I cannot add exceptions. I have read a lot about it and I have already deleted cert8.db file. I use Windows XP and Firefox 18. Any ideas? With Google Chrome I can enter the site after accepting the exception.

Chosen solution

The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

  1. Go to Firefox > Help > Troubleshooting Information.
  2. Click the "Reset Firefox" button.
  3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
  4. Firefox will open with all factory defaults applied.


Further information can be found in the Refresh Firefox - reset add-ons and settings article.

Did this fix your problems? Please report back to us!

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Chosen Solution

The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

  1. Go to Firefox > Help > Troubleshooting Information.
  2. Click the "Reset Firefox" button.
  3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
  4. Firefox will open with all factory defaults applied.


Further information can be found in the Refresh Firefox - reset add-ons and settings article.

Did this fix your problems? Please report back to us!

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Check the date and time in the clock on your computer: (double) click the clock icon on the Windows Taskbar.

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Hello, Thank you very much. Reseting Firefox it has shown the "add exception" option.