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I cannot update to the latest version. After the downlaod is complete, the browser does not respond and I cannot do anything. How can I fix this?

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  • 1 has this problem
  • Last reply by FredMcD

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I am using a MacBook Pro and updated to Sierra. I need to use FireFox for a school I am attending, but when I download to the latest version, nothing happens. The browser opens, but when I enter a web address there is no action.

I also use Norton antivirus, but I think I have added Firefox to the list of allowed devices on the firewall. The older version of Firefox works, but is slow.

Any help would be greatly appreciated.

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Some problems occur when your Internet security program was set to trust the previous version of Firefox, but no longer recognizes your updated version as trusted. Now how to fix the problem: To allow Firefox to connect to the Internet again;

  • Make sure your Internet security software is up-to-date (i.e. you are running the latest version).
  • Remove Firefox from your program's list of trusted or recognized programs. For detailed instructions, see

Configure firewalls so that Firefox can access the Internet. {web link}