FIX: Sec_error_ocsp_future_response (on Firefox)

by Matthew Adams
Matthew Adams
Matthew Adams
Windows & Software Expert
Matthew is a freelancer who has produced a variety of articles on various topics related to technology. His main focus is the Windows OS and all the things... read more
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  • OCSP is an Internet protocol carrying information on websites' certification status. But it has its own flaws.
  • For instance, sec_error_ocsp_future_response can prevent you from accessing legitimate sites via Firefox.
  • The full error code: sec_error_ocsp_future_response states the OCSP response is not yet valid (contains a date in the future).
  • If you're looking for a sec_error_ocsp_future_response Firefox fix, try adjusting your system's time and update your browser.
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A while ago, Firefox users complained about sec_error_ocsp_future_response on the Mozilla forum. Unfortunately, this is still not in the past.

It seems then the error code: sec_error_ocsp_future_response pops out when users try to open webpages in Firefox.

The full error message states that the the OCSP response is not yet valid (contains a date in the future).

An error occurred during a connection to. The OCSP response is not yet valid (contains a date in the future). Error code: SEC_ERROR_OCSP_FUTURE_RESPONSE.

As frustrating as it may be, there are still ways to circumvent this error and we will explore them in the guide below. So, read on and discover which sec_error_ocsp_future_response Firefox fix works best for you.

How do you fix an OCSP error?

1. Switch to another browser

If you have trouble opening web pages in Firefox on a permanent basis, you should consider switching to Opera. Based on the impressive core features this browser has to offer, it’s safe to say you won’t be bothered by sec_error_ocsp_future_response again.

Opera’s amazing functionalities will outweigh many well-known plugins, including Chrome or Mozilla. The video pop-up, built-in VPN, integrated messenger, and My Flow are just some of its biggest enhancements.

Due to the built-in ad blocker, your web pages will load faster and you’ll not be bothered by unnecessary advertisements or images.

The software also includes various built-in packages such as task development, battery saving, tabs management, and more, all wrapped up in an easy-to-use interface.


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2. Update Firefox

  1. Open Firefox.
  2. Click Firefox’s Open menu button.
  3. Click Help to open further menu options.
    The Help menu firefox error SEC_ERROR_OCSP_FUTURE_RESPONSE
  4. Select the About Firefox option.About Firefox window firefox error SEC_ERROR_OCSP_FUTURE_RESPONSE
  5. Press the Restart to update Firefox button.

Error code: sec_error_ocsp_future_response can be triggered when users run an outdated version of the browser. Make sure you follow the steps we described above to bring Firefox up to date.

3. Check the time and date in Windows 10

  1. Click the system tray clock at the right of the taskbar.
  2. Press the Windows key + S keyboard shortcut.
  3. Enter the keyword time in the search box.
  4. Click Change the date and time to open the Settings window.Date & time tab firefox error SEC_ERROR_OCSP_FUTURE_RESPONSE
  5. Turn on the Set the time automatically option.
  6. Restart your desktop or laptop.
  7. Click the Change button to manually adjust the time and date settings.Change date option firefox error SEC_ERROR_OCSP_FUTURE_RESPONSE
  8. Press the Change button, and restart Windows.

This should answer one of the most important questions associated with this problem: What does Sec_error_ocsp_future_response mean?

Sec error OCSP future response basically indicates that your system clock is set to a past date or time. In order to fix this, we advise you to set your time locally by following the steps above.

Note icon
Note: You might also need to replace your PC’s CMOS battery if the date and time keep changing in Windows. <br>You can do that by removing the old CMOS from the motherboard, but some users might prefer to hand their PCs to IT repair services to replace CMOS batteries.

4. Turn off OCSP verification

  1. Launch Firefox.
  2. Click the Settings menu and select Options.
  3. Click Privacy and Security on the left of the tab.
  4. Scroll down to the Query OCSP responder servers to confirm the current validity of certification option.
    Query OCSP responder option firefox error SEC_ERROR_OCSP_FUTURE_RESPONSE
  5. Deselect the selected Query OCSP responder servers checkbox.
  6. Close and restart Firefox

By following these steps, you should be able to completely fix the SEC_ERROR_OCSP_FUTURE_RESPONSE error in Mozilla Firefox.

Feel free to leave us a message in the comments section below, and tell us which of the above-mentioned methods worked best for you.

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Frequently Asked Questions

  • OCSP is the abbreviation for Online Certificate Status Protocol which is an Internet protocol utilized for conveying certificate revocation information. The information is used for security purposes.

  • Firefox sends a request to the OCSP server requiring information about the website’s certification status. In return, the server indicates whether the certificate is still valid or has already been revoked.

  • OCSP requests can slow down HTTPS connections. New certificates force the browser to make new requests which take more time to complete. If the browser cannot connect to the OCSP server, it must either drop the connection or keep it.

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