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

Wannan tattunawa ta zama daɗaɗɗiya. Yi sabuwar tambaya idan ka na bukatar taimako.

[Solved] certificate contains unknown critical extension error firefox 5

  • 1 amsa
  • 28 sa na da wannan matsala
  • 1 view
  • Amsa ta ƙarshe daga mtimmjcp

mtimmjcp
mtimmjcp
more options

Secure connection failed An error occurred during a connection to an internal website Certificate contains unknown critical extension (Error code: sec_error_unknown_critical_extension)

Secure connection failed An error occurred during a connection to an internal website Certificate contains unknown critical extension (Error code: sec_error_unknown_critical_extension)

An gyara daga the-edmeister

All Replies (1)

mtimmjcp
mtimmjcp Mai mallakar tambaya
more options

I imported the root chain for my internal CAs into FireFox and this fixed the problem. Tools->Options->Advanced->View Certificates->Import