Google, Apple, Microsoft, and Mozilla announced that they ending the outdated Transport Layer Security (TLS) 1.0 and 1.1 support in their respective web Browsers in the first quarter of 2020. Various Browser clients have provided approximate deadlines for disabling TLS 1.0 and TLS 1.1 protocol: Browser NameDate Microsoft IE and EdgeThe first half of 2020 Mozilla FirefoxMarch 2020