Sök i support

Akta dig för supportbedrägerier: Vi kommer aldrig att be dig att ringa eller skicka ett sms till ett telefonnummer eller dela personlig information. Rapportera misstänkt aktivitet med alternativet "Rapportera missbruk".

Läs mer

Firefox won't open FaceBook on my Mac.

  • 1 svar
  • 3 har detta problem
  • 24 visningar
  • Senaste svar av guigs

more options

This is the message I get (which usually offers to add a security exception, but not in this case) when I try to open FaceBook in Firefox.

www.facebook.com uses an invalid security certificate. The certificate is not trusted because the issuer certificate is unknown. (Error code: sec_error_unknown_issuer)

Also, GUI's aren't present, just hyperlinks using Firefox to browse Firefox's help page.

This is the message I get (which usually offers to add a security exception, but not in this case) when I try to open FaceBook in Firefox. www.facebook.com uses an invalid security certificate. The certificate is not trusted because the issuer certificate is unknown. (Error code: sec_error_unknown_issuer) Also, GUI's aren't present, just hyperlinks using Firefox to browse Firefox's help page.

Alla svar (1)

more options

HI DrewPri, In your browser open up about:permissions in a new tab. Search for facebook and click "Forget this site". This will remove all the cached pages, cookies and certs for facebook locally. Restarting Firefox and logging in will request a new certificate.