Many browsers (including Firefox, Chrome, Internet Explorer and Safari) will soon no longer support either TLS 1.0 or 1.1. Most likely, many of you have already migrated from SSL to TLS for Oracle E-Business Suite 12.2 and 12.1: however, you should also make certain that you have configured Oracle E-Business Suite properly for TLS 1.2.
You have the option to configure Oracle E-Business Suite to work with TLS 1.2 only, or to be backward compatible with TLS 1.2, 1.1, and 1.0. Either of these configurations will allow Oracle E-Business Suite to function properly with browsers that have desupported TLS 1.0 and 1.1.