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everything in firefox is blocked "unable to connect" -how to correct

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when trying to access any site via firefox, the error "unable to connect" displays. Unable to access anywebsite. Running Windows 7 Professional, Using McAfee as secutiry shield.

when trying to access any site via firefox, the error "unable to connect" displays. Unable to access anywebsite. Running Windows 7 Professional, Using McAfee as secutiry shield.

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I guess no one has fixed or figured out how to run firefox with Mcafees. As I have recieved 0 info on this problem. Just unloaded and tried to reload firefox. Explorer will not allow firefox download page to open. If I turn off the firewall it will but then I will have to do that everytime I use firefox. no protection. Why can Microsoft and Mcaffees do this. It sucks. Cmon already Mozilla. Are you folks gonna alow this?