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

Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.

Shouldn't have allowed update. Kaspersky disabled. How do I fix this or go back to the old version?

  • 1 baphendule
  • 4 zinale nkinga
  • 8 views
  • Igcine ukuphendulwa ngu philipp

more options

Allowed Firefox to update this morning and it disabled my Kaspersky add-on. Contacting Kaspersky for a fix seems like a lot of trouble to get something working that worked before the update. If I could find a way, I'd simply go back to the version I had before the update. If this can't be fixed on your end I'll have to use another browser. Kind of a shame, I've used firefox for some time now and been pleased - up until now! Bill

Allowed Firefox to update this morning and it disabled my Kaspersky add-on. Contacting Kaspersky for a fix seems like a lot of trouble to get something working that worked before the update. If I could find a way, I'd simply go back to the version I had before the update. If this can't be fixed on your end I'll have to use another browser. Kind of a shame, I've used firefox for some time now and been pleased - up until now! Bill

All Replies (1)

more options

hi, this can't be fixed on our end and downgrading would leave you open to many fixed vulnerabilities, which is far worse than a disabled addon which isn't even part of the core protection engine of your av-provider: https://www.mozilla.org/en-US/security/known-vulnerabilities/firefox/

please get in contact with kaspersky in order to inquire how they'll make compatible versions for their extensions available - you are actually paying them for this service! the update cycle of firefox is known many months in advance, so this can't come as a surprise to any big developer like kaspersky...