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Every https site fails to load with an invalid certificate

  • 3 biyano
  • 20 eza na bankokoso oyo
  • 1 view
  • Eyano yasuka ya pulzar

pulzar
pulzar
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I bought a new computer, I freshly installed Firefox 14 on Windows 7 (64 bit), and every https site fails to load, with various security certificate failures. Gmail, for example, won't load because of this: "accounts.google.com uses an invalid security certificate.The certificate is not trusted because no issuer chain was provided.".. that's even after adding a manual override. My bank's website won't open because the serial number is used on another certificate.. etc. etc.

I've tried all the commonly suggested solutions -- deleting cert8.db, uninstalling Firefox, creating new profiles, copying over profile from the old PC, creating a new profile under a new user... Nothing seems to have any effect. I tried Firefox 14, and 15 (beta), both as fresh installs. I tried disabling my antivirus and firewall (ESET).

I'm out of ideas. Chrome and IE work without any issues. All other PCs on the same home network behind the same router have Firefoxes that work fine.

I bought a new computer, I freshly installed Firefox 14 on Windows 7 (64 bit), and every https site fails to load, with various security certificate failures. Gmail, for example, won't load because of this: "accounts.google.com uses an invalid security certificate.The certificate is not trusted because no issuer chain was provided.".. that's even after adding a manual override. My bank's website won't open because the serial number is used on another certificate.. etc. etc. I've tried all the commonly suggested solutions -- deleting cert8.db, uninstalling Firefox, creating new profiles, copying over profile from the old PC, creating a new profile under a new user... Nothing seems to have any effect. I tried Firefox 14, and 15 (beta), both as fresh installs. I tried disabling my antivirus and firewall (ESET). I'm out of ideas. Chrome and IE work without any issues. All other PCs on the same home network behind the same router have Firefoxes that work fine.

Solution eye eponami

Which security software (firewall, anti-virus) do you have?

Some security software intercept secure connections and send their own certificate.

Some examples are ESET and Bitdefender.

  • ESET setup -> advanced setup -> extend web and email tree -> SSL
  • SSL protocol: Do not scan SSL protocol
  • BitDefender -> Privacy settings -> disable Scan SSL
Tanga eyano oyo ndenge esengeli 👍 11

All Replies (3)

Swarnava Sengupta
Swarnava Sengupta
  • Locale Leader
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Try to remove the cert8.db file in the Firefox Profile Folder or rename the file to cert8.db.old to remove the intermediate certificates that Firefox has stored.

Firefox will automatically store new intermediate certificates when you visit websites that send them.

You can use this button to go to the Firefox profile folder:

  • Help > Troubleshooting Information > Profile Directory: Open Containing Folder
cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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Solution eye oponami

Which security software (firewall, anti-virus) do you have?

Some security software intercept secure connections and send their own certificate.

Some examples are ESET and Bitdefender.

  • ESET setup -> advanced setup -> extend web and email tree -> SSL
  • SSL protocol: Do not scan SSL protocol
  • BitDefender -> Privacy settings -> disable Scan SSL
pulzar
pulzar Nkolo motuna
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Thanks! I didn't realize that ESET was scanning and replacing SSL certificates...