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Firefox recognizes "This page uses weak encryption" but SSLLABS grades it A

Question asked by j-mailor on Feb 1, 2017
Latest reply on Feb 2, 2017 by j-mailor

Hi,

I haven't seen this info in Firefox before, it may be something new in latest version Firefox 51.0.1 (on Windows 7).

I checked why there is orange rectangle beside lock in address bar and to my surprise new info is "This page uses weak encryption". Looking in details it is AES-128 using TLS v1.2.

 

 

But looking at ssllabs.com test to see what is wrong and there is grade A without anything wrong at all.

Any idea what Firefox is trying to tell us?

 

ssllabs.com result (click on image to enlarge - it can take several seconds to open:

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