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

This thread was archived. Please ask a new question if you need help.

Why can't I get Kaspersky to update because Firefox is blocking it

  • 2 replies
  • 3 have this problem
  • 2 views
  • Last reply by cor-el

McKibbonAA
McKibbonAA
more options

Kaspersky cannot function because Firefox is making it impossible. I can't get a "certificate" from Kaspersky to satisfy Firefox. Kaspersky will not accept my appeals because I no longer use the email address I used when I started with Kaspersky 7 years ago. I see MANY OTHERS HAVE HAD THIS PROBLEM, BUT YOU DO NOT REVEAL THE SOLUTION. FIX THIS. mY COMPUTER IS IN REPAIR BECAUSE OF THIS CONFUSION.

i AM CONTACTING YOU FROM A PUBLIC LIBRARY

Kaspersky cannot function because Firefox is making it impossible. I can't get a "certificate" from Kaspersky to satisfy Firefox. Kaspersky will not accept my appeals because I no longer use the email address I used when I started with Kaspersky 7 years ago. I see MANY OTHERS HAVE HAD THIS PROBLEM, BUT YOU DO NOT REVEAL THE SOLUTION. FIX THIS. mY COMPUTER IS IN REPAIR BECAUSE OF THIS CONFUSION. i AM CONTACTING YOU FROM A PUBLIC LIBRARY

All Replies (2)

FredMcD
FredMcD
more options

Do you have a profile with Kaspersky. Edit it.

I've called the big guys to help you. Good luck.

This will disable add-on signature enforcement; Enter about:config into your Firefox address bar Click the I'll be careful button Find xpinstall.signatures.required in the list Right click the preference Select Toggle until the value is false https://support.mozilla.org/en-US/kb/add-on-signing-in-firefox

https://wiki.mozilla.org/Firefox/AddOns/Status/Updates#Exec_Summary “Currently targeting Signing with no pref to turn off in Firefox 47”

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

If you can't inspect the certificate via "I Understand the Risks" then try this:

Open the "Add Security Exception" window by pasting this chrome URL in the Firefox location/address bar and check the certificate:

  • chrome://pippki/content/exceptionDialog.xul

In the location field of this window type or paste the URL of the website.

  • retrieve the certificate via the "Get certificate" button
  • click the "View..." button to inspect the certificate in the Certificate Viewer

You can inspect details like the issuer and the certificate chain in the Details tab of the Certificate Viewer. Check who is the issuer of the certificate. If necessary then you can attach a screenshot that shows the certificate viewer.

If the certificate is issued by your Kaspersky security software then you have two options: