I have been connecting to a cloud pc (windows365.microsoft.com - because my employer won't allow contractors to access their network directly any longer) using Mozilla Firefox. All went well until I upgraded Firefox to 130.0 Now the cloud PC still "connects" (as in open remote port, configure remote connection, establish secure connection, etc.) BUT where it used to show the (full screen) unauthorized access message which you had to acknowledge, it now just shows a black screen. My account details can still be accessed from here (and it even shows a successful sign-in through Mozilla Firefox). The Windows11 desktop is not shown though, so effectively useless. I was wondering if there is a setting in Firefox 130.0 that prevents this acknowledge message screen from being displayed ?