Facebook certificate not valid

[darpan333]

i open my fb accont than one error occour that is " server certificate is not valid"

 

[ksiemb]

i open my fb accont than one error occour that is " server certificate is not valid"

http://www.ehow.com/how_5094365_fix-certificate-error-windows-computer.html

or

https://userscripts.org/topics/88897