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Solutions For "Could not initialize the application's security component..." NOT Working

  • 3 replies
  • 2 have this problem
  • 2 views
  • Last reply by Toad-Hall

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When opening today Thunderbird the following message appeared: "Could not initialize the application's security component"

My computer has over 80Gb free space I deleted Cert8 and restarted, that did not fix the issue I ensured that the 'Read Only' option for Cert8 is unchecked, still the problem remained I uninstalled Thunderbird and reloaded, that did not help either.

Could be a corrupted Cert8, well I do not wish to risk losing valuable non-Thunderbird data by creating a new profile (the only other suggested solution)

Please can someone get me out of this mess, as I'm unable to access my emails.

When opening today Thunderbird the following message appeared: "Could not initialize the application's security component" My computer has over 80Gb free space I deleted Cert8 and restarted, that did not fix the issue I ensured that the 'Read Only' option for Cert8 is unchecked, still the problem remained I uninstalled Thunderbird and reloaded, that did not help either. Could be a corrupted Cert8, well I do not wish to risk losing valuable non-Thunderbird data by creating a new profile (the only other suggested solution) Please can someone get me out of this mess, as I'm unable to access my emails.

Chosen solution

Thanks for your suggestion, it was really helpful, soon as I located that 'Profile' folder and deleted the Cert8 file (with Firefox closed) then opened Thunderbird my account seems to run fine. It's really good of you to help :)

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Delete the cert8.db file in the Thunderbird profile folder.

This will remove all intermediate certificates that Thunderbird has stored.

Info on profile here:

Make sure Thunderbird is closed before deleting the cert8.db file.

Modified by Toad-Hall

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Chosen Solution

Thanks for your suggestion, it was really helpful, soon as I located that 'Profile' folder and deleted the Cert8 file (with Firefox closed) then opened Thunderbird my account seems to run fine. It's really good of you to help :)

Modified by linrem

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