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i cannot login to my gmail account facebook account

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whan i try to log in this massege come up "Firefox can't establish a connection to the server at mail.google.com." and whan i try to log in to facebook it say "Firefox can't establish a connection to the server at login.facebook.com"

whan i try to log in this massege come up "Firefox can't establish a connection to the server at mail.google.com." and whan i try to log in to facebook it say "Firefox can't establish a connection to the server at login.facebook.com"

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A possible cause is security software (firewall) that blocks or restricts Firefox without informing you about that, maybe after detecting changes (update) to the Firefox program. Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox.

See Configure firewalls so that Firefox can access the Internet and http://kb.mozillazine.org/Firewalls