I have been trying to access Firefox and Chrome on my Ubuntu system but it always end up with this screen.

Your connection to this site is not secure

This site can't be reached

My VPN is switched off and I have not installed any antivirus also.

Can you please help me out?

  • 1
    Have you tried after after all temporary data such as cookies and cache?
    – Kulfy
    Jan 4, 2019 at 15:10
  • 1
    Yeah, Even I have done that.
    – ChocoLite
    Jan 4, 2019 at 15:12
  • Are you encountering this on a particular site or all sites?
    – Kulfy
    Jan 4, 2019 at 15:19
  • 2
    Can you screenshot the full error messages you're seeing and add links to those screenshots in your post? There's likely more information than is being provided here hidden in the messages that will help explain what you're actually running into in terms of problems.
    – Thomas Ward
    Jan 4, 2019 at 15:25
  • Are you behind a firewall? Can you post the Certificate Authorities on the https cert?
    – rtaft
    Jan 4, 2019 at 15:26


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