Join the Mozilla’s Test Days event from Dec 2–8 to test the new Firefox address bar on Firefox Beta 134 and get a chance to win Mozilla swag vouchers! 🎁

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

Why does Firefox Quantum show 'Insecure Connection' for every website?

  • 4 antwoorde
  • 51 hierdie probleem
  • 6 views
  • Laaste antwoord deur cor-el

LAPIII
LAPIII
more options

My software are Windows 10, Firefox 58, and Bitdefender Internet Security 2018. I can visit websites fine in Microsoft Edge. Win 10 is using Bitdefender's firewall, see screenshots.

My software are Windows 10, Firefox 58, and Bitdefender Internet Security 2018. I can visit websites fine in Microsoft Edge. Win 10 is using Bitdefender's firewall, see screenshots.
Aangehegde skermkiekies

Gekose oplossing

please keep the option disabled, there are many instances in the past where it was shown that av software intercepting secure connections actually makes you less secure: https://blog.vpn.ac/disable-https-scanning.html http://www.cbc.ca/news/technology/antivirus-software-1.3668746 https://jhalderm.com/pub/papers/interception-ndss17.pdf

Lees dié antwoord in konteks 👍 2

All Replies (4)

LAPIII
LAPIII Vraag-eienaar
more options

I can now visit sites. I had just "Toggle off the Scan SSL setting." How to troubleshoot the error code "SEC_ERROR_UNKNOWN_ISSUER" on secure websites. I used to run all the software just fine with each other. Could Firefox Quantum have have had an update that requires this? If not, then Is there a work around, it does seem that I should scan SSL settings?

philipp
philipp
  • Moderator
more options

Gekose oplossing

please keep the option disabled, there are many instances in the past where it was shown that av software intercepting secure connections actually makes you less secure: https://blog.vpn.ac/disable-https-scanning.html http://www.cbc.ca/news/technology/antivirus-software-1.3668746 https://jhalderm.com/pub/papers/interception-ndss17.pdf

kenwf
kenwf
more options

oh yes, firefox slows right down, suggestion to refresh it, now virtually every site "uses an invalid security certificate. Google? Youtube? Yahoo?

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Hi kenwf.

If you use the refresh feature in Firefox then you lose certificate stored in the Firefox Certificate Manager. You can copy cert9.db from the "Old Firefox Data" folder on the desktop to the current profile folder to restore root certificates stored previously.

If you only have a cert8.db file used previously (57 and older) in the "Old Firefox Data" folder instead of cert9.db then make sure to remove an existing cert9.db in the current profile folder.

You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.