How to fix SEC_ERROR_OCSP_FUTURE_RESPONSE error on Windows PC?

Reportedly, Firefox users are dealing with an issue where whenever they attempt to access certain files that contain CSS elements, they encounter SEC_ERROR_OCSP_FUTURE_RESPONSE error. As it turns out, the issue is frequent with security websites – the one that use HTTPS.

The problem could be because you are using an outdated Firefox older than build 47. The issue could be likely because it contains certain bugs that affect CSS elements. The required fix is to update the web browser to the latest version.

However, if you are already using the updated Firefox version on your Windows and still receive this issue, you should investigate if your date and time are not outdated. In case, you update them with the correct value and even then the modification doesn’t last in the start, replace your CMOS battery.

In certain cases, there could be OCSP concerns with websites. In the particular case, you should consider of disabling the OCSP verifications to resolve the issue. Check below for the complete steps regarding the every possible solution to resolve the issue:

Possible fixes for SEC_ERROR_OCSP_FUTURE_RESPONSE error

Fix 1: Update Firefox to the latest version

As it turns out, the issue could be caused due to you are using Firefox version 47 or below. There could be certain bug which is causing problems with the CSS elements. As a required fix, you should consider updating your Firefox to the latest version:

  • Open Firefox and click on the action button on the top-right screen,
  • Go to the Help tab, and select About Firefox,
  • Firefox will automatically check for the update the then and provide you an option to download and install it,
  • Once the update is installed, the browser should automatically restart, allowing you to test and see if the problem is resolved.

Fix 2: Set the correct date and time

If SEC_ERROR_OCSP_FUTURE_RESPONSE error is associated with OSCSP response which is not valid to the fact the system is set to a future date. In other word, there could be a case that the computer clock or time is not set correctly due to which the problem exists. You should consider of correcting the date and time and see if this provides you the fix:

  • Press Win+ R, type timedate.cpl and hit Enter to open Date and Time Window,
  • Go to Date and Time Window and click on Change date and time,
  • Use the calendar under the date and time to select the appropriate value according to the time-zone of your place,
  • Once done, restart your computer and repeat the action that was previously causing the issue and see if the problem persists.

Fix 3: Change the CMOS battery

If the problem continues, another think to look at is the problem with your CMOS or Complementary Metal-Oxide Semiconductor battery. It is responsible for tracking certain BIOS preferences including the system date and time. In the scenario, the possible fix is to clean the CMOS battery or replace it if necessary:

  • Turn off your computer and un-plug it from a power source,
  • Remove the side cover now and equip yourself with a static wristband so as to ground yourself to the frame,
  • From the motherboard, find the CMOS battery and remove it from the slot using your fingernail or a non-conductive screwdriver,
  • Clean it with a soft cloth dipped in isopropyl alcohol and also clean the slot to make sure it is dust free,
  • Now, put it back in and plug your computer back the then to the power source and start it to see If SEC_ERROR_OCSP_FUTURE_RESPONSE error continues.

Fix 4: Disable OCSP verifications

If none of the above solutions work, you should consider the case is that the problem is due to OCSP check. You should disable this option so that no websites would have go with this check. Here are the required steps:

  • Open Firefox and click on the action button on the top,
  • Click on Options under Preferences menu and select Privacy & Security,
  • Scroll down and when you see Certificates menu, ensure that the box associated with Query OCSP responder servers to confirm the current validity of certificate is disabled,
  • Restart your browser the then and load the previously web-page and see if the problem is resolved.

That’s all! We have provided all possible fixes for SEC_ERROR_OCSP_FUTURE_RESPONSE error. Hope so, these fixes are helpful for you in getting rid of the problem. If the problem remains, make sure you use PC Repair Tool to check for possible Windows related issues to get their automatic fix.