I did all these steps. The problem is always here (with for example) : https://admin.microsoft.com/ https://aad.portal.azure.com/ ... More details : Same problem with Chrome on the same Mac When KIS is closed, that works on Safari and Chrome. On the same Mac, in a virtual machine with Windows, there is no problem. Desactivate the KIS extension in Safari or Chrome does not work. Each time, the only way to make it work is to close KIS. When I reopen it, it does not work again.