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

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

Several websites came back as not secure including Twitter after I used the "Refreh Firefox" button, and some websites images won't show up on

  • 1 antwoord
  • 1 het hierdie probleem
  • 18 views
  • Laaste antwoord deur FredMcD

more options

The messages "Your connection is not secure

The owner of twitter.com has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website.

This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox may only connect to it securely. As a result, it is not possible to add an exception for this certificate.

Learn more…

Report errors like this to help Mozilla identify and block malicious sites" and

"Your connection is not secure

The owner of www.adultempire.com has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website.

Learn more…

Report errors like this to help Mozilla identify and block malicious sites"

comes up for several websites including Twitter, Tumblr, DeviantArt.com google.com & others

And other websites, images don't show up

None of this happened until after I used the "Refresh Firefox - reset add-ons and settings" feature

The messages "Your connection is not secure The owner of twitter.com has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website. This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox may only connect to it securely. As a result, it is not possible to add an exception for this certificate. Learn more… Report errors like this to help Mozilla identify and block malicious sites" and "Your connection is not secure The owner of www.adultempire.com has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website. Learn more… Report errors like this to help Mozilla identify and block malicious sites" comes up for several websites including Twitter, Tumblr, DeviantArt.com google.com & others And other websites, images don't show up None of this happened until after I used the "Refresh Firefox - reset add-ons and settings" feature

All Replies (1)

more options