Software⏱️ 3 min read📅 2026-06-15

How to Fix: Suddenly SEC_ERROR_REVOKED_CERTIFICATE error in Firefox 99.0.1, but not in other browsers nor a different profile in same FF Version

Firefox 99.0.1 issue with SEC_ERROR_REVOKED_CERTIFICATE error, resolved by creating a new profile or adjusting OCSP settings.

Quick Answer: Try creating a new Firefox profile or adjust OCSP settings to resolve the SEC_ERROR_REVOKED_CERTIFICATE error.

📋 Table of Contents

  1. 🔍 Why This Happens
  2. ✅ Best Solutions to Fix It
  3. ✨ Wrapping Up

Suddenly, Firefox 99.0.1 is experiencing an issue where it cannot connect to a specific website due to a SEC_ERROR_REVOKED_CERTIFICATE error. This error affects users who rely on this website and can be frustrating to resolve.

Despite having a valid certificate from QuoVadis Global SSL ICA G3, Firefox is unable to verify the certificate, causing issues with connection attempts.

🔍 Why This Happens

  • The primary root cause of this issue lies in the Firefox 99.0.1 version and its handling of OCSP (Online Certificate Status Protocol) cache. It appears that the new version has introduced a bug where it incorrectly identifies the certificate as revoked.
  • An alternative explanation could be related to the specific domain or IP address used by the website, which may have been added to a blocklist or blacklisted by Firefox's security settings.

✅ Best Solutions to Fix It

Clearing the OCSP cache and updating Firefox

  1. Step 1: Open Firefox 99.0.1 and go to Options > Advanced > Network > Settings.
  2. Step 2: In the 'Cache' section, click on 'Clear Now' next to 'OCSP Cache'.
  3. Step 3: Restart Firefox after clearing the OCSP cache.
  4. Step 4: Method 1 may not resolve the issue if the problem lies with a specific domain or IP address. In this case, proceed to Method 2.

Disabling and re-enabling the website's certificate in Firefox

  1. Step 1: Open Firefox 99.0.1 and go to Options > Advanced > Network > Settings.
  2. Step 2: In the 'Certificates' section, find the website's domain and click on the three dots next to it.
  3. Step 3: Select 'Disable Certificate' from the dropdown menu.
  4. Step 4: Wait for a few seconds and then select 'Enable Certificate' again.
  5. Step 5: Restart Firefox after re-enabling the certificate.
  6. Step 6: Method 2 may not resolve the issue if the problem lies with a specific domain or IP address. In this case, proceed to further troubleshooting.

✨ Wrapping Up

If neither Method 1 nor Method 2 resolves the issue, try creating a new profile in Firefox and test the website again. If the issue persists, consider reaching out to the website's administrator for assistance or contacting Mozilla support for further guidance.

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