Microsoft will disable TLS 1.0 and 1.1 in Internet Explorer and EdgeHTML on September 13

In 2018, Microsoft announced that it would phase out the TLS 1.0 and TLS 1.1 protocols in Internet Explorer, both of which are obsolete and no longer secure and should not continue to be used. However, the COVID-19 epidemic in 2020 may make it too busy for enterprises to transform existing infrastructure, and rashly disabling the above protocols may cause enterprises to encounter problems in use, so Microsoft decided to postpone the date of the ban.
Mozilla Firefox no longer supports TLS
Now Microsoft has decided to disable TLS 1.0 and 1.1 in Internet Explorer and EdgeHTML on September 13. IT Admins who want to disable TLS 1.0 and 1.1 before the announced date can do that using dedicated rules in Group Policy Editor.
Personal users are actually very simple to configure, just re-check TLS 1.0 and TLS 1.1 in the advanced Internet options (Tools > Internet Options > Advanced), of course, professional users can also configure through group policies.

Via: Neowin