'This Connection is Untrusted' error in Firefox in Yahoo and Google.

Hi.
(English is not my native language.)
In Firefox, there is a certificate manager. (Somewhere in the settings)

There you will find one or more "KasperskyAnti-VirusPersonalRootCertificate"

Delete them.

Then import the certificate that you will find in:
C:\ProgramData\Kaspersky Lab\AVP15.0.1\Data\Cert\ (fake)Kaspersky Anti-Virus Personal Root Certificate.cer

Important: You have to configure your computer to show you "hiddenfiles" before.


Kilauea

16.10.2014 19:46

Hi Kilauea,
(English is not my native language.) for me too.

U simply can't import the certificate u mention just before, because u then receive as answer:

"Ce certificat personnel ne peut être installé car vous ne possédez pas la clé privée correspondante qui a été crée lorsque le certificat a été requis"
Which means +/- "that u don't have the private key created when the certificat was required"

and now ??

16.10.2014 19:56

You have to import the certificate via Firefox.

Open Firefox -> settings -> find the certificate tab -> and then import the certificate.

In the tab "Authorities"

(No double click on the certificate <-> use Firefox to import)

Do you tried this way ?

Inspiration:http://forum.kaspersky.com/lofiversion/index.php/t307761.html