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

Using version 64.0.4 64bit screen says I need to update, locks screen, have to reboot, is it legit?

  • 1 cavab
  • 1 has this problem
  • 3 views
  • Last reply by TyDraniu

more options

While browsing screen comes up and says I am using outdated version of firefox and I need to update to the latest version. Screen turns gray, popup says firefox blocked this site from downloading file. Screen has firefox logo, but URL does not have Mozilla or Firefox in it. Screen locks up and I have to restart windows to get out of it. Using windows 10 pro 64 bit.

While browsing screen comes up and says I am using outdated version of firefox and I need to update to the latest version. Screen turns gray, popup says firefox blocked this site from downloading file. Screen has firefox logo, but URL does not have Mozilla or Firefox in it. Screen locks up and I have to restart windows to get out of it. Using windows 10 pro 64 bit.

All Replies (1)

more options

It looks like a malware. See I found a fake Firefox update.