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With install of this latest version of Firefox, cannot access any websites, but just get the message "Your connection is not secure". Other browsers connect ok.

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We love using Firefox! With install of this latest version update of Firefox, we cannot access any websites, but just get the message "Your connection is not secure". Other browsers are able to connect fine. Would you please let us know how to get Firefox going again without compromising PC security? Greatly appreciate your assistance!

We love using Firefox! With install of this latest version update of Firefox, we cannot access any websites, but just get the message "Your connection is not secure". Other browsers are able to connect fine. Would you please let us know how to get Firefox going again without compromising PC security? Greatly appreciate your assistance!

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Post a screen shot of the error? And what if any site can you post that shows what it says so other can see if they get the same error. Also check your A/V or Firewall to see if it isn't blocking your access as well.