Mozilla's browser will, from March, require manual override
Mozilla Firefox will require user intervention to connect to websites using the TLS 1.0 or 1.1 protocol from March 2020 – and plans to eventually block those weak HTTPS connections entirely.
We have been hearing about issues with TLS 1.0 and 1.1 for some time. Web servers should really be using TLS 1.2 or 1.3 for their encrypted and secure HTTPS connections.
The PCI Data Security Standard (PCI DSS) for sites handling credit card transactions has required at least TLS 1.1 since 1 July 2018. That said, it is not until March this year that most users will see more than a warning in their web browser, and some browsers do not show any warning. We took a look at a website running TLS 1.0 in a variety of web browsers today. Of these:
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