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.

I use Firefox for internet, I use Kaspersky get msg they are not comp

  • 1 reply
  • 1 has this problem
  • 7 views
  • Last reply by FredMcD

marthahurley210
marthahurley210
more options

I like to use Firefox for my internet and e-mails. I have Kaspersky Total Security on my computer. I keep getting a message that Kaspersky cannot connect. Also that Kaspersky has been cancelled. Kaspersky tells me everything is OK and have scanned my computer several times. Why doesn't Firefox work with Kaspersky?

I like to use Firefox for my internet and e-mails. I have Kaspersky Total Security on my computer. I keep getting a message that Kaspersky cannot connect. Also that Kaspersky has been cancelled. Kaspersky tells me everything is OK and have scanned my computer several times. Why doesn't Firefox work with Kaspersky?

All Replies (1)

FredMcD
FredMcD
more options

Check Kaspersky for updates. What is the full error message?

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”