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Originally posted by PurityOfPeace
I have also been in the Microsoft security settings, and allowed Firefox and Messenger in that, still no joy.
Originally posted by Quake
Do you use any firewall other than Windows one?
Also, try turning off windows firewall and then launch firefox. Better way would be, disable the firewall so that it does not launch on start-up and then reboot. Then try launching firefox. This will confirm whether the problems are being caused due to the security settings of windows firewall.