Solved Cannot Access Gmail With Firefox 34 Beta 2

[Gary]

mail.google.com uses an invalid security certificate. The certificate is not trusted because the issuer certificate is unknown.

I also cannot access PayPal due to the above.

 

[HarriePateman]

Try using a non-beta version.

 

[Gary]

Not an option

 

[HarriePateman]

Not an option

Howcome?

 

[Gary]

Because this feature is not a bug, it will be in the Final Release of Firefox 34. That is how come.

 

[Gary]

I went back to Fx 33 for Giggles and I still cannot get to Gmail.

 

[Callender]

Check SSL

Perhaps you could check your SSL\ TLS settings?

I'll post mine for comparison (using Cyberfox)

Type in the address bar

about:config

in the search box type

.SSL

Here's what I see for true - enabled.



And here;s what I see when I visit howsmyssl.com



I've also heard that some AV's have built in SSL scanning that can cause problems with secure sites and turning off this feature might solve the problem.

 

[Callender]

More settings

Just checked Gmail. It needs TLS v1.2 enabled



Check the following settings are enabled and that values are the same:

 

[Callender]

Certificate errors

Also check your system clock. If it's out of sync it could be an issue.

See: [Fix] SSL Error or Invalid Security Certificate Problem While Opening Facebook or Other Websites - AskVG

Check time here: Accurate Time

 

[Callender]

A test

You could try portable (zipped) Cyberfox. Intel or AMD version depending upon your Motherboard. It uses it's own profile so won't screw up Firefox. Run it and if you get the same problem accessing gmail then it's not a Firefox issue.

https://8pecxstudios.com/cyberfox-portable-edition

 

[Gary]

Thanks for all of the help. It turned out to be a setting is KIS 2015. I just started using it.

 

[Callender]

Brilliant! You're the second person I've seen posting who has had that problem with KIS!