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Cannot Access Google on Firefox - Error code: SEC_ERROR_UNKNOWN_ISSUER

phoenixalia
phoenixalia
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This started happening this morning. I opened Firefox and tried going to google.com as usual but I got this error: http://i.imgur.com/XPn2xVW.png

I tried cleaning up my registry with CCleaner, refreshing Firefox, checking off 'Scan encrypted connections' in Kaspersky, but none of them worked.

My OS is Windows 7 Ultimate 64 bit.

This started happening this morning. I opened Firefox and tried going to google.com as usual but I got this error: http://i.imgur.com/XPn2xVW.png I tried cleaning up my registry with CCleaner, refreshing Firefox, checking off 'Scan encrypted connections' in Kaspersky, but none of them worked. My OS is Windows 7 Ultimate 64 bit.

Chosen solution

EDIT: OK, so I followed the instructions from this link: https://support.mozilla.org/en-US/kb/troubleshoot-SEC_ERROR_UNKNOWN_ISSUER

And did what was said for Kaspersky and now google is loading on Firefox at last.

NOTE: When I tried these settings in my 2014 version, it didn't work. It only worked in the 2016 version.

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All Replies (9)

philipp
philipp
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hi, which exact version of kaspersky are you using?

phoenixalia
phoenixalia Question owner
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Hi philipp,

Thanks for your quick reply.

I have the 2014 version of Kaspersky. 15.0.1.415(f) For more details, see this image: http://i.imgur.com/wCXprIH.png

philipp
philipp
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thanks, if you are in a current subscription with kaspersky, you will be entitled to a free upgrade to the 2016 version of their product. please try to download the upgrade and see if this can change the issue: https://usa.kaspersky.com/downloads/software-upgrades/

we had a very similar problem at this thread: https://support.mozilla.org/en-US/questions/1119030

phoenixalia
phoenixalia Question owner
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Hi, I live in India so I think the US page doesn't apply to me. I'm trying to figure out how to get a free upgrade to the 2016 version. Any ideas?

philipp
philipp
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it shouldn't make a difference where you live - here is the update site for kasperky india: http://www.kaspersky.co.in/product-updates

phoenixalia
phoenixalia Question owner
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Updated my Kasperky, still no difference. Sniff.

phoenixalia
phoenixalia Question owner
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Chosen Solution

EDIT: OK, so I followed the instructions from this link: https://support.mozilla.org/en-US/kb/troubleshoot-SEC_ERROR_UNKNOWN_ISSUER

And did what was said for Kaspersky and now google is loading on Firefox at last.

NOTE: When I tried these settings in my 2014 version, it didn't work. It only worked in the 2016 version.

philipp
philipp
  • Moderator
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thanks for reporting back about how you solved the issue!

phoenixalia
phoenixalia Question owner
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Thank you very much!