We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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.

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

This thread was closed and archived. Please ask a new question if you need help.

Firefox will not open any search query with any search engine. All are UNTRUSTED.

  • 1 reply
  • 0 have this problem
  • 5 views
  • Last reply by McCoy

more options

I am unable to go any search engine site or use any search engine, including yahoo, bing and google. I keep getting a message saying "Your connection is not secure". When I click advanced it says whatever site "uses an invalid certificate" and I am unable to add it as an exception. The error code is SEC_ERROR_UNKNOWN_ISSUER.

I am unable to go any search engine site or use any search engine, including yahoo, bing and google. I keep getting a message saying "Your connection is not secure". When I click advanced it says whatever site "uses an invalid certificate" and I am unable to add it as an exception. The error code is SEC_ERROR_UNKNOWN_ISSUER.

All Replies (1)

more options

Duplicate question.

Please continue here :

https://support.mozilla.org/en-US/questions/1227308