Whenever I try to open any secure site like facebook or gmail error comes that 'Website certificate is invalid' . What should i do? I tried different browsers still it shows same error why? I use Windows 7 and firefox browser. Help I will appreciate it.
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It may seem a bit unrelated but are the time and date on your computer set correctly as this can cause your problem -
First
check to see you have the lastest firefox
Help-About Firefox- Check for Updates
if you have then
Tools then Advanced - Encryption
Tick SSL and TLS
also correcting the clock is important.
like Egren71 said if your date and time is wrong then your certificates are not validComment
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